CN201852664U - Shock-proof precision pressure meter - Google Patents
Shock-proof precision pressure meter Download PDFInfo
- Publication number
- CN201852664U CN201852664U CN2010202723411U CN201020272341U CN201852664U CN 201852664 U CN201852664 U CN 201852664U CN 2010202723411 U CN2010202723411 U CN 2010202723411U CN 201020272341 U CN201020272341 U CN 201020272341U CN 201852664 U CN201852664 U CN 201852664U
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- China
- Prior art keywords
- meter
- watchcase
- damping
- precision pressure
- pressure gauge
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- Expired - Fee Related
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Abstract
The utility model provides a shock-proof precision pressure meter which is structurally characterized in that in a meter shell, an adapter is mounted on the meter shell through a fastening screw, and a sealing gasket is arranged at the junction of the adapter and the meter shell to provide a seal; and with respect to the view window part of the shock-proof precision pressure meter, a meter glass piece is compressed on the meter shell through six cross-slot half-round head screws that are arranged on the meter cover, and a sealing ring is arranged between the meter glass piece and the meter shell, so as to form a closed space inside the meter shell. A certain amount of a damping liquid is injected into the meter shell through explosion-proof holes. Part of a machine core, part of an indicating needle and part of a spring tube are immersed inside the damping liquid. A damping bolt is mounted at the entrance of the adapter, and two small holes are drilled in the center of the damping bolt and intersected at 90 degrees, so as to greatly restrict the flow rate of a medium to be measured and flow through the damping bolt. The utility model has the effect of precision measurement, and can meet the requirement for protecting against the strong change of pressure pulse or the pressure shock of the medium to be measured as well as the requirements of vibrating occasions in which sudden unloads are required frequently in the production process.
Description
Technical field
The utility model is a kind of a kind of instrument with antidetonation precision measurement pressure size, pressure at measured medium has the occasion that needs often unexpected off-load in strong pulse change or compression shock and the production technology, and in the big place of environmental vibration, the utility model can both carry out precision measurement, be widely used in industrial processes precision measurement and scientific experimentation and current extensive high-speed railway, the bridge construction static test, prestress tensioning equipment, ground tackle and the matching used demand of bridge stretch-draw engineering machinery, national measurement verification requirement is satisfied in its requirement, have good anti seismic efficiency, also can be used for oil, coal, geology, chemical industry, industries such as machinery.
Background technology
The tradition precision pressure gauge is similar substantially with measuring principle to the structure of ordinarily manometer, all be a kind of be the high-precision pressure measurement instrument of measuring sensor with the bourdon tube, the manufacturing process of precision pressure gauge many with respect to the ordinarily manometer complex process just, no matter be material from elastic sensing element, still from linkage magnification system, for guaranteeing its performance, all very rigorous in selection, manufacturing process, detection method, in order to guarantee the accuracy class requirement of precision pressure gauge, also having proposed than ordinarily manometer packing and transportation and having stored all has stricter requirement.High vibration in transit, jolt and damage that artificially the artificial uncertain factors such as operation, bump in the carrying very easily cause the main parts of precision pressure gauge taking off tooth or jumping coming off of tooth and pointer as the gear train movement.For prevent in transit high vibration, jolt, clash into and cause the loosening of glass breakage and watch glasses and other spare and accessory parts, normal employing foam box is packed and need be pressed a foam-rubber cushion on the pointer at precision pressure gauge at last procedure of manometer manufacturer production precision pressure gauge, so must take intact precision pressure gauge apart before the user uses, can use after taking foam-rubber cushion away, so just cause the inconvenience in the use.
And need the place of the pressure size of precision measurement to get more and more to the working site now, the pressure of working site is not the static pressure in the laboratory or the little pressure of pulsing, violent pressure surge and unexpected pressurization, pressure release are often arranged, the tradition precision pressure gauge can not satisfy the place that environment that strenuous vibration is arranged and measured medium have big ups and downs for the requirement that guarantees its accuracy class, and this has just limited the usable range of precision pressure.
Summary of the invention
Need simultaneously to resist measured medium pressure has and needs the often request for utilization of the occasion of off-load suddenly in strong pulse change or compression shock and the production technology in order to solve the size that the working site needs precision measurement pressure load value, ad hoc meter antidetonation precision pressure gauge of the present utility model, allow watchcase and joint and watch glass keep sealing, and then can bring influence to alleviate the external environment vibrations to bourdon tube, movement and pointer in the inner filling of watchcase towards damping fluid; Secondly be provided with damping unit in the pressure tapping import, can alleviate the pulse of measuring media and the damage that compression shock brings precision pressure gauge.The environment for use of above-mentioned two places design can expansion the utility model antidetonation precision pressure gauge precision measurement pressure.
Design of the present utility model realizes in such a way: the antidetonation precision pressure gauge, and its structure is formed a confined space by the sealing gasket and the O-ring seal of joint, watchcase, table lid, watch glass and each junction; And the damping fluid of filling in this confined space and the damping screw composition that installs additional, its bourdon tube, movement, pointer, index dial are immersed in the damping fluid.Be provided with sealing gasket in joint and watchcase junction and guarantee sealing between joint and the watchcase with this; Watch glass is pressed on the watchcase by the cross recess half-round head screw that table covers, and is provided with O-ring seal between watch glass and watchcase; Be provided with explosionproof hole and explosion-proof plug in the watchcase upper end.Above-mentioned design is by watchcase, and sealing gasket, O-ring seal that table lid, watch glass, joint and each junction are provided with are formed a confined space jointly, and just can inject damping fluid in this confined space along explosionproof hole.Inflow point at joint is equipped with the damping screw, the center of damping screw is drilled with two apertures that intersect 90 °, its aperture will limit the flow of measured medium, thereby realize alleviating external environment vibrations and the strong pulse change of measured medium pressure or the influence that compression shock brings the antidetonation precision pressure gauge.
Description of drawings
Fig. 1 is the cut-open view of the utility model antidetonation precision pressure gauge.
Fig. 2 is the front view of the utility model antidetonation precision pressure gauge.
Fig. 3 is the damping screw cut-open view of the utility model antidetonation precision pressure gauge.
Wherein: 1. table covers 2. watch glasss, 3. index dials, 4. damping fluids, 5. movements, 6 pointers, 7. O-ring seals, 8. cross recess half-round head screws, 9. joints, 10. explosion-proof plugs, 11. explosionproof holes, 12. bourdon tubes, 13. watchcases, 14. holding screws, 15. sealing gaskets, 16. damping fluid surface levels, 17. damping screws
Embodiment
With reference to instructions the utility model antidetonation precision pressure gauge is done following detailed explanation.
The damping fluid (4) of the utility model antidetonation precision pressure gauge filling and resist that measured medium pressure has strong pulse change or compression shock and the damping screw (17) that installs additional is formed by measuring system [comprising joint (9), bourdon tube (12)], gear train [movement (5)], indicating device [pointer (6), index dial (3)], housing parts [comprising watchcase (13), table lid (1) and watch glass (2)] and the vibrations of opposing external environment.In watchcase (13) inside, its joint (9) is installed on the watchcase (13) by holding screw (14), and locates to be equipped with sealing gasket (15) at joint (9) and watchcase (13), guarantees sealing between joint (9) and the watchcase (13) with this.Form its watch glass of part (2) at the antidetonation precision pressure gauge is to be pressed on the watchcase (13) by six the cross recess half-round head screws (8) on the table lid (1), and between watch glass (2) and watchcase (13), O-ring seal (7) is installed, guarantees sealing between watch glass (2) and the watchcase (13) with this.The sealing at above-mentioned several places, can make airtight space of the inner formation of watchcase (13), in the inner confined space of watchcase (13), inject damping fluid (4) along explosionproof hole (11), when the height of damping fluid surface level (16) reaches height among Fig. 2, then the part of movement (5), pointer (6) and bourdon tube (12) is immersed in the damping fluid (4), can alleviate external environment vibrations to bourdon tube (12), movement (5) and to the influence of the pointer in the indicating device (6) shake.Inflow point is equipped with damping screw (17) at antidetonation precision pressure meter connector (9), its damping screw (17) screws on joint (9) by screw thread, be drilled with two at the center of damping screw (17) and intersect 90 ° of apertures, can allow measured medium flow through damping screw (17), alleviate the strong pulse change of measured medium pressure or the influence that compression shock brings the antidetonation precision pressure gauge with very little flow.
Above-mentioned filling damping fluid (4) and the two places design that damping screw (17) is installed not only can have been alleviated the external environment vibrations and bourdon tube (12), movement (5) and pointer (6) brought influence but also can alleviate the compression shock that the strong pulse change of measured medium pressure is brought the antidetonation precision pressure gauge.
The above embodiment is a kind of of the more preferably concrete embodiment of the utility model, and common variation that those skilled in the art carries out in the technical solutions of the utility model scope and replacement all should be included in protection domain of the present utility model.
Claims (4)
1. antidetonation precision pressure gauge is characterized in that: its structure is formed a confined space by the sealing gasket (15) and the O-ring seal (7) of joint (9), watchcase (13), table lid (1), watch glass (2) and each junction; And the damping fluid of filling in this confined space (4) and the damping screw (17) that installs additional form, and its bourdon tube (12), movement (5), pointer (6), index dial (3) are immersed in the damping fluid (4).
2. antidetonation precision pressure gauge according to claim 1 is characterized in that: described joint (9) and watchcase (13) junction are provided with the sealing gasket (15) that guarantees sealing between joint (9) and the watchcase (13); Described watch glass (2) is pressed on the watchcase (13) by the cross recess half-round head screw (8) on the table lid (1), and is provided with O-ring seal (7) between watch glass (2) and watchcase (13); Described watchcase (13) upper end is provided with explosionproof hole (11) and explosion-proof plug (10).
3. antidetonation precision pressure gauge according to claim 1 and 2 is characterized in that: filling has a certain amount of damping fluid (4) in the described confined space.
4. antidetonation precision pressure gauge according to claim 1 is characterized in that: described joint (9) inflow point is equipped with damping screw (17), and is drilled with two at the center of damping screw (17) and intersects 90 ° of apertures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202723411U CN201852664U (en) | 2010-07-23 | 2010-07-23 | Shock-proof precision pressure meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202723411U CN201852664U (en) | 2010-07-23 | 2010-07-23 | Shock-proof precision pressure meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201852664U true CN201852664U (en) | 2011-06-01 |
Family
ID=44095053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202723411U Expired - Fee Related CN201852664U (en) | 2010-07-23 | 2010-07-23 | Shock-proof precision pressure meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201852664U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104697698A (en) * | 2015-03-28 | 2015-06-10 | 马鞍山现代仪表有限公司 | Dry type seismic pressure gauge |
| CN105927700A (en) * | 2016-05-06 | 2016-09-07 | 武汉航空仪表有限责任公司 | Closed-end tube vibration reduction device |
-
2010
- 2010-07-23 CN CN2010202723411U patent/CN201852664U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104697698A (en) * | 2015-03-28 | 2015-06-10 | 马鞍山现代仪表有限公司 | Dry type seismic pressure gauge |
| CN105927700A (en) * | 2016-05-06 | 2016-09-07 | 武汉航空仪表有限责任公司 | Closed-end tube vibration reduction device |
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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: 20110601 Termination date: 20130723 |