CN202471332U - Pressure gauge - Google Patents
Pressure gauge Download PDFInfo
- Publication number
- CN202471332U CN202471332U CN2011205725127U CN201120572512U CN202471332U CN 202471332 U CN202471332 U CN 202471332U CN 2011205725127 U CN2011205725127 U CN 2011205725127U CN 201120572512 U CN201120572512 U CN 201120572512U CN 202471332 U CN202471332 U CN 202471332U
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- CN
- China
- Prior art keywords
- piston
- end cap
- piston seat
- tubular shell
- pressure gauge
- 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
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- Measuring Fluid Pressure (AREA)
Abstract
The utility model relates to a pressure gauge, comprising a housing, wherein the housing comprises a tubular housing and end caps arranged at both ends of the tubular housing, wherein one end cap is a plugging end cap, the other end cap is integrally provided with a connection portion, the connection portion is provided with a through hole communicated with the inside and outside of the tubular housing, the pressure gauge also comprises a piston seat anastomotic with the inside of the tubular housing and slidingly matched with the tubular housing, a spring arranged between the piston seat and the plugging end cap, and a piston top rod slidingly arranged inside the through hole of the connection portion, one end of the piston seat, near the through hole is provided with a matching portion matching with the piston top rod in a manner of top press fit, the tubular housing is provided with a transparent structure used for observing the moving of the piston seat, the outer circumferential surface of one of the transparent structure and the piston seat is provided with scale marks, and the corresponding positions on the outer circumferential surface of the other one of the transparent structure and the piston seat are provided with scale marks. Compared with the prior art, the press gauge omits components such a gear transmission mechanism and pointers, is simple in structure, and is uneasy to damage in a violent vibration impact environment.
Description
Technical field
The utility model relates to a kind of mechanical hook-up of gaging pressure.
Background technology
Mechanical gauge generally is made up of parts such as elastic sensing element, gear drive, pointer, dial plate and shells, and elastic sensing element is generally spring.Elastic sensing element in this type pressure gauge produces elastic deformation along with the variation of pressure; Drive pointer through manometric gear drive and rotate demonstration with respect to atmospheric relative value; This pressure gauge is used comparatively extensive, but exists parts many, complex structure; The problem of in the high vibration shock environment, damaging easily is not suitable for some occasion higher to the vibratory impulse conditional request.
Summary of the invention
The purpose of the utility model is to provide mechanism simple a kind of pressure gauge.
A kind of pressure gauge of the utility model; Comprise shell; Said shell comprises tubular shell and the end cap of being located at these tubular shell two ends; One of them end cap is the shutoff end cap with this tubular shell port closed; Be integrally formed with on another end cap and be used for the connecting portion that is connected with tested pressure source, this connecting portion is provided with and is communicated with the inside and outside through hole of tubular shell, and this pressure gauge also is included in this tubular shell in axial direction and tubular shell coincide and the piston seat that is slidingly matched, spring and the slip of being located between this piston seat and the said shutoff end cap are arranged in the piston mandril that is used for feedback pressure in the said connecting portion through hole; Said piston seat is provided with the auxiliary section that cooperates with said piston mandril roof pressure near an end of said through hole; Have on the said tubular shell and be used to observe the transparent configuration that said piston seat moves, on the outer peripheral face of one of them in said transparent configuration and said piston seat scale is set, the correspondence position on another the outer peripheral face is provided with scale mark.
The middle part of said shutoff end cap sets firmly spring base, and said piston seat is provided with spring fixed hole towards the end face of said spring.
Said piston mandril is a sphere towards the end face of said piston seat, and the auxiliary section of said piston seat is the taper concave surface that contacts with said sphere line.
Said connecting portion is the column structure that outer peripheral face is provided with connecting thread, between said piston mandril and said connecting portion, is provided with the O-ring seals that is used to isolate tested pressure source and ambient atmosphere and coincide and be slidingly matched with this piston mandril.
Between said piston mandril outside the said O-ring seals and said connecting portion, be provided with the sealing-plug that is used for fixing this O-ring seals and coincide and be slidingly matched with this piston mandril.
Said shutoff end cap revolves the end that is located at said tubular shell.
On said tubular shell, radially be provided with the holding screw that prevents that said shutoff end cap is loosening.
Said transparent configuration or piston seat that scale is set are provided with and the corresponding pressure limit of scale district.
The utility model in use, tested pressure source promotes piston mandril piston mandril roof pressure piston seat, piston seat slides in tubular shell; Until receiving elastic force and piston rod thrust reaches balance,, on another the outer peripheral face scale mark is set owing on the outer peripheral face of one of them in said tubular shell and said piston seat scale is set; Therefore; When piston seat stops to move, can demonstrate institute's measuring pressure, compared with prior art saved parts such as gear drive, pointer; Simple in structure, not fragile in the high vibration shock environment.
Further, the middle part of shutoff end cap sets firmly spring base, and piston seat is provided with spring fixed hole towards the end face of said spring, and in shock environment, spring is not yielding like this, has further strengthened manometric impact resistance.
Further, between piston mandril and connecting portion, be provided for isolating tested pressure source and ambient atmosphere O-ring seals, make pressure gauge in measuring fluid pressure, avoided the influence of extraneous factor.
Further, the shutoff end cap revolves the end that is located at said tubular shell, help when pressure gauge assembles adjustment scale mark and 0 scale to positive relationship.
Further, on tubular shell, radially be provided with holding screw, prevent that said shutoff end cap is loosening.
Description of drawings
Fig. 1 is a manometric cross-sectional view among the utility model embodiment;
Fig. 2 is a manometric contour structures synoptic diagram among the utility model embodiment
Fig. 3 is the sectional structure synoptic diagram during pressure gauge uses among the utility model embodiment;
Fig. 4 be during pressure gauge uses among the utility model embodiment the sectional structure synoptic diagram.
Embodiment
Below in conjunction with accompanying drawing the utility model embodiment is done detailed description:
A kind of pressure gauge embodiment comprises shell like Fig. 1, and shell comprises having tubular shell 16 and the end cap of being located at these tubular shell 16 two ends; One of them end cap is the shutoff end cap with these tubular shell 16 port closeds; Be integrally formed with on another end cap and be used for the connecting portion that is connected with tested pressure source, this connecting portion is provided with and is communicated with the inside and outside through hole of tubular shell 16, and connecting portion is a column structure; Its outer peripheral face is provided with and is used for the external thread that is tightened with tested pressure source; The piston seat 18 that this pressure gauge also is included in this tubular shell 16 and tubular shell 16 in axial direction coincide and be slidingly matched, spring 17 and the slip of being located between this piston seat 18 and the shutoff end cap 15 are arranged in the piston mandril that is used for feedback pressure 5 in the said connecting portion through hole, and piston seat 18 is provided with the auxiliary section that cooperates with piston mandril 5 roof pressures near an end of said through hole, and tubular shell 16 is provided with observes the transparent transparent configuration 10 that said piston seat moves; This transparent configuration 10 is a transparent sight hole; Scale 0 ~ 4 is set on the transparent configuration 10, and each unit represents 10MPa, and scale mark 11 is set on the outer peripheral face of piston seat 18; Scale mark 11 and 0 scale over against; Also be provided with on the transparent configuration 10 and the corresponding pressure limit of scale district, the scope district can be arranged to different colours as required, can be arranged to yellow, green, redness respectively such as low-pressure area 12, working pressure district 13, high pressure caution district 14; Be convenient to judge fast which scope pressure belongs to; So that take relevant behave rapidly,, on the outer peripheral face of shutoff end cap 15, be provided with external thread in order to be convenient to adjust the corresponding relation of index line 11 and 0 scale when mounted; Tubular shell 16 opening parts are provided with internal thread, and this shutoff end cap 15 revolves and is located at this tubular shell 16 ends; In order to prevent that spring 17 is out of shape in shock environment; Set firmly spring base 8 at the middle part of shutoff end cap 15; On the end face of stating spring, be provided with spring fixed hole at piston seat 18; Piston mandril 5 is a sphere towards the end face of piston seat 18, and the auxiliary section of piston seat 18 is the taper concave surface that contacts with said sphere line; In order to prevent to receive ectocine when the measuring fluid pressure; Between piston mandril 5 and connecting portion, be provided with the O-ring seals 6 that are used to isolate tested pressure source and ambient atmosphere and coincide and be slidingly matched with this piston mandril 5; Between the piston mandril 5 in O-ring seals 6 outsides and connecting portion, be provided with the sealing-plugs 7 that are used for fixing this O-ring seals 6 and coincide and be slidingly matched with this piston mandril 5; In order to prevent shutoff end cap 15 becoming flexible under the impact shock situation, on tubular shell 16, radially be provided with the holding screw 9 that prevents that shutoff end cap 15 from becoming flexible.
In use, tested pressure source promotes piston mandril piston mandril roof pressure piston seat, and piston seat slides in tubular shell; Scale mark on the piston seat begins to move from the zero graduation of transparent configuration, until receiving elastic force and piston rod thrust reaches balance, when piston seat stops to move; The index line indication is carved and is pointed out institute's measuring pressure; Compared with prior art saved parts such as gear drive, pointer, simple in structure, not fragile in the high vibration shock environment.
In other embodiment of the utility model, different with the foregoing description is that said tubular shell can also directly be provided with scale and get final product for transparent at this moment on tubular shell; In other embodiment of the utility model, different with the foregoing description is that said scale can also be arranged on the piston seat; Scale mark is arranged on the corresponding position of tubular shell, and during measurement, scale in axial direction moves; Scale mark is motionless; When piston seat is stablized, equally can demonstration place force value, also be provided with on the said piston seat and the corresponding pressure limit of scale district; In other embodiment of the utility model, different with the foregoing description is that said shutoff end cap is provided with internal thread; The tubular shell end that cooperates with the shutoff end cap is provided with external thread, and said shutoff end cap revolves and is located at the tubular shell end, in other embodiment of the utility model; Different with the foregoing description is; Said shutoff end cap can also be welded on the tubular shell, and in other embodiment of the utility model, different with the foregoing description is; When detecting nonfluid pressure, can not establish O-ring seals and sealing-plug.
Claims (8)
1. pressure gauge; Comprise shell; It is characterized in that: said shell comprises tubular shell and the end cap of being located at these tubular shell two ends; One of them end cap is the shutoff end cap with this tubular shell tubular shell port closed; Be integrally formed with on another end cap and be used for the connecting portion that is connected with tested pressure source, this connecting portion is provided with and is communicated with the inside and outside through hole of tubular shell, and this pressure gauge also is included in this tubular shell in axial direction and tubular shell coincide and the piston seat that is slidingly matched, spring and the slip of being located between this piston seat and the said shutoff end cap are arranged in the piston mandril that is used for feedback pressure in the said connecting portion through hole; Said piston seat is provided with the auxiliary section that cooperates with said piston mandril roof pressure near an end of said through hole; Have on the said tubular shell and be used to observe the transparent configuration that said piston seat moves, on the outer peripheral face of one of them in said transparent configuration and said piston seat scale is set, the correspondence position on another the outer peripheral face is provided with scale mark.
2. a kind of pressure gauge according to claim 1 is characterized in that: the middle part of said shutoff end cap sets firmly spring base, and said piston seat is provided with spring fixed hole towards the end face of said spring.
3. a kind of pressure gauge according to claim 1 and 2 is characterized in that: said piston mandril is a sphere towards the end face of said piston seat, and the auxiliary section of said piston seat is the taper concave surface that contacts with said sphere line.
4. a kind of pressure gauge according to claim 1 and 2; It is characterized in that: said connecting portion is the column structure that outer peripheral face is provided with connecting thread, between said piston mandril and said connecting portion, is provided with the O-ring seals that is used to isolate tested pressure source and ambient atmosphere and coincide and be slidingly matched with this piston mandril.
5. a kind of pressure gauge according to claim 4 is characterized in that: between said piston mandril outside the said O-ring seals and said connecting portion, be provided with the sealing-plug that is used for fixing this O-ring seals and coincide and be slidingly matched with this piston mandril.
6. a kind of pressure gauge according to claim 1 and 2 is characterized in that: said shutoff end cap revolves the end that is located at said tubular shell.
7. a kind of pressure gauge according to claim 6 is characterized in that: on said tubular shell, radially be provided with the holding screw that prevents that said shutoff end cap is loosening.
8. according to claim 1 or 2 or 5 or 7 described a kind of pressure gauges, it is characterized in that: said transparent configuration or piston seat that scale is set are provided with and the corresponding pressure limit of scale district.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205725127U CN202471332U (en) | 2011-12-31 | 2011-12-31 | Pressure gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205725127U CN202471332U (en) | 2011-12-31 | 2011-12-31 | Pressure gauge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202471332U true CN202471332U (en) | 2012-10-03 |
Family
ID=46919484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205725127U Expired - Fee Related CN202471332U (en) | 2011-12-31 | 2011-12-31 | Pressure gauge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202471332U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103674393A (en) * | 2013-12-30 | 2014-03-26 | 中山富茂密封科技有限公司 | Diaphragm pressure gauge |
| TWI494552B (en) * | 2013-02-01 | 2015-08-01 | Wen San Chou | Manometer |
| CN109118906A (en) * | 2018-11-14 | 2019-01-01 | 山东科技大学 | A kind of assembly type mechanical teaching aid component showing axle power |
| CN114414125A (en) * | 2021-12-13 | 2022-04-29 | 岚图汽车科技有限公司 | Cell thermal runaway injection pressure test device, test method and related equipment |
-
2011
- 2011-12-31 CN CN2011205725127U patent/CN202471332U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI494552B (en) * | 2013-02-01 | 2015-08-01 | Wen San Chou | Manometer |
| CN103674393A (en) * | 2013-12-30 | 2014-03-26 | 中山富茂密封科技有限公司 | Diaphragm pressure gauge |
| CN109118906A (en) * | 2018-11-14 | 2019-01-01 | 山东科技大学 | A kind of assembly type mechanical teaching aid component showing axle power |
| CN114414125A (en) * | 2021-12-13 | 2022-04-29 | 岚图汽车科技有限公司 | Cell thermal runaway injection pressure test device, test method and related equipment |
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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 |
Granted publication date: 20121003 Termination date: 20181231 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |