CN202092817U - Pressure gauge capable of measuring overpressure - Google Patents
Pressure gauge capable of measuring overpressure Download PDFInfo
- Publication number
- CN202092817U CN202092817U CN2011200303716U CN201120030371U CN202092817U CN 202092817 U CN202092817 U CN 202092817U CN 2011200303716 U CN2011200303716 U CN 2011200303716U CN 201120030371 U CN201120030371 U CN 201120030371U CN 202092817 U CN202092817 U CN 202092817U
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- CN
- China
- Prior art keywords
- connecting rod
- sector gear
- bourdon tube
- pointer
- gear
- 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.)
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Abstract
A pressure gauge capable of measuring an overpressure relates to the technical field of measuring instruments. The pressure gauge is composed of a limiting column (1), a shaft gear (2), a sector gear (3), a spring tube (4), a head (5), a connecting rod (6), a dial (7) and a pointer (8), the free end of the spring tube (4) is hinged to one end of the connecting rod (6), the other end of the connecting rod is hinged to the tail portion of the sector gear (3), the free end of the spring tube (4) is provided with the head (5), the other end of the spring tube (4) is welded on the casing of the instrument and communicated with a tube joint, the sector gear (3) is engaged with the shaft gear (2) at the center of the dial (7), the shaft gear (2) is equipped with the pointer (8), and the sector gear (3) is slidably connected with the limiting column (1) mounted on the dial (7). The structure is scientific and reasonable, the measurement is accurate, the pressure gauge is not easy to damage, and the service life is extended.
Description
Technical field:
The utility model relates to the surveying instrument technical field, especially a kind of tensimeter, but be specifically related to a kind of superpressure tensimeter.
Background technology:
Pressure and temperature, flow, thing position also are called four basic physical amounts in the surveying.In the industrial automation production run, pressure also is one of important technical parameters.Especially in production runes such as chemical industry, oil refining, often run into the measurement of various pressure and vacuum tightness.Therefore correct measurement and controlled pressure are to guarantee that thereby the good operation of production run reaches the important step of good quality and high output and safety in production.Tensimeter also plays crucial effect as a kind of instrument of gaging pressure in sum.The tensimeter that is used for distinct device at present is various in style, and oil dumped pressure gauge is exactly numerous manometric a kind of.
Ordinarily manometer mainly is made up of four major parts such as bourdon tube, gear train, indicating mechanism and watchcase.Its principle of work is: bourdon tube is under pressure and vacuum action, produce elastic deformation and cause the pipe end displacement, its displacement is amplified by mechanical transmission mechanism, passes to indicating device, is pointed out on the index plate of the legal unit of measurement by measuring pressure or vacuum value being carved with by pointer again.
But there is following drawback in ordinarily manometer: because internal pressure is excessive, bourdon tube is free-ended to be moved when exceeding maximum holding capacity when bourdon tube, causes the tensimeter can't operate as normal easily, fragile.
The utility model content:
But the purpose of this utility model provides a kind of superpressure tensimeter, and it is scientific and reasonable for structure, measure accurately, and not fragile, prolonged serviceable life.
In order to solve the existing problem of background technology, the utility model is by the following technical solutions: it is made up of limited post, shaft gear, sector gear, bourdon tube, end socket, connecting rod, dial plate and pointer, the free end of bourdon tube and connecting rod one end are hinged, the connecting rod other end and sector gear afterbody are hinged, the free end of bourdon tube is provided with end socket, the bourdon tube other end is welded on the housing of instrument, and communicates with pipe adapter; The engagement of the shaft gear of sector gear and dial plate center is equipped with pointer on the shaft gear, sector gear slidably is connected with limited post on being installed in dial plate.
Described bourdon tube is that an xsect that curves circular arc is oval-shaped hollow pipe, and its free end seals.
On the described end socket shell fragment is installed, and end socket is rotationally connected with the free end of bourdon tube.
On the described connecting rod shell fragment is installed, and connecting rod is an extensible link.
The utility model is scientific and reasonable for structure, measures accurately, and not fragile, prolonged serviceable life.
Description of drawings:
Fig. 1 is a structural representation of the present utility model,
Fig. 2-Fig. 3 is a working state schematic representation of the present utility model.
Embodiment:
With reference to Fig. 1, this embodiment is by the following technical solutions: it is made up of limited post 1, shaft gear 2, sector gear 3, bourdon tube 4, end socket 5, connecting rod 6, dial plate 7 and pointer 8, the free end of bourdon tube 4 and connecting rod 6 one ends are hinged, connecting rod 6 other ends and sector gear 3 afterbodys are hinged, the free end of bourdon tube 4 is provided with end socket 5, bourdon tube 4 other ends are welded on the housing of instrument, and communicate with pipe adapter; Shaft gear 2 engagements of sector gear 3 and dial plate 7 centers are equipped with pointer 8 on the shaft gear 2, sector gear 3 slidably is connected with limited post 1 on being installed in dial plate 7.
Described bourdon tube 4 is that an xsect that curves circular arc is oval-shaped hollow pipe, and its free end seals.
On the described end socket 5 shell fragment is installed, and end socket 5 is rotationally connected with the free end of bourdon tube.
On the described connecting rod 6 shell fragment is installed, and connecting rod 6 is an extensible link.
The principle of work of this embodiment is: when bourdon tube 4 changes owing to internal pressure; bourdon tube 4 tip displacement drivening rods 6; sector gear 3; shaft gear 2 and pointer 8 rotate; indication relevant pressure value; when bourdon tube 4 because internal pressure (pointer 8 indications just surpass the dial scale maximal value) when measuring maximal value; limited post 1 has limited sector gear 3 and has been rotated further (pointer 8 also stops operating); because of bourdon tube 4 since internal pressure continue to increase; sector gear 3 restrictions are rotated; produce pulling force between sector gear 3 and bourdon tube 4 ends; at this moment, tensimeter has three kinds of safeguard measures:
As Fig. 1: connecting rod 6 elongates, and eliminates pulling force, in order to avoid that other mechanisms are drawn is bad; When bourdon tube 4 because internal pressure (pointer 8 indications just are lower than the dial scale maximal value) when measuring maximal value, connecting rod 6 is answered elastic recoil (on the connecting rod 6 shell fragment being housed), but sector gear 3 is normal rotation (pointer 8 also rotates) again, and tensimeter can normally use again.
As Fig. 2: end socket 5 rotations, eliminate pulling force, in order to avoid that other mechanisms are drawn is bad; When bourdon tube 4 because internal pressure (pointer 8 indications just are lower than the dial scale maximal value) when measuring maximal value, end socket 5 is answered elastic recoil (on the end socket 5 shell fragment being housed), but sector gear 3 is normal rotation (pointer 8 also rotates) again, and tensimeter can normally use again.
As Fig. 3: sector gear 3 afterbodys (sector gear 3 fixed rotating shafts are to connecting rod 6 junctions), along sector gear 3 fixed rotating shafts is that rotating shaft is rotated, eliminate pulling force, in order to avoid that other mechanisms are drawn is bad, when bourdon tube 4 because internal pressure (pointer 8 indications just are lower than the dial scale maximal value) when measuring maximal value, sector gear 3 afterbodys are answered elastic recoil (on the sector gear 3 shell fragment being housed) but sector gear 3 normal rotation (pointer 8 also rotates) again, and tensimeter can normally use again.And above three kinds of safeguard measures can be carried out simultaneously.
This embodiment is scientific and reasonable for structure, measures accurately, and not fragile, prolonged serviceable life.
Claims (5)
1. but superpressure tensimeter, it is characterized in that it is made up of limited post (1), shaft gear (2), sector gear (3), bourdon tube (4), end socket (5), connecting rod (6), dial plate (7) and pointer (8), the free end of bourdon tube (4) and connecting rod (6) one ends are hinged, connecting rod (6) other end and sector gear (3) afterbody are hinged, the free end of bourdon tube (4) is provided with end socket (5), bourdon tube (4) other end is welded on the housing of instrument, and communicates with pipe adapter; Shaft gear (2) engagement of sector gear (3) and dial plate (7) center is equipped with pointer (8) on the shaft gear (2), sector gear (3) slidably is connected with limited post (1) on being installed in dial plate (7).
2. but superpressure tensimeter according to claim 1 it is characterized in that on the described end socket (5) shell fragment being installed, and end socket (5) is rotationally connected with the free end of bourdon tube.
3. but superpressure tensimeter according to claim 1 it is characterized in that on the described connecting rod (6) shell fragment being installed, and connecting rod (6) is an extensible link.
4. but superpressure tensimeter according to claim 1 it is characterized in that described bourdon tube (4) is that an xsect that curves circular arc is oval-shaped hollow pipe, and its free end seals.
5. but superpressure tensimeter according to claim 1 is characterized in that described sector gear (3) fixed rotating shaft is to connecting rod (6) junction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200303716U CN202092817U (en) | 2011-01-28 | 2011-01-28 | Pressure gauge capable of measuring overpressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200303716U CN202092817U (en) | 2011-01-28 | 2011-01-28 | Pressure gauge capable of measuring overpressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202092817U true CN202092817U (en) | 2011-12-28 |
Family
ID=45367878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200303716U Expired - Fee Related CN202092817U (en) | 2011-01-28 | 2011-01-28 | Pressure gauge capable of measuring overpressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202092817U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105181233A (en) * | 2015-05-27 | 2015-12-23 | 慈溪市华东压力表有限公司 | Nonlinear display pressure gauge |
| CN109616003A (en) * | 2019-01-31 | 2019-04-12 | 浙江理工大学 | A kind of mechanical kinetic energy transmission teaching guidance model |
| CN111189575A (en) * | 2020-01-14 | 2020-05-22 | 秦亚州 | Limit amplification disassembly-free pressure gauge capable of calibrating zero setting |
| CN118032068A (en) * | 2024-04-11 | 2024-05-14 | 鸿舸半导体设备(上海)有限公司 | Venturi type mechanical flowmeter |
-
2011
- 2011-01-28 CN CN2011200303716U patent/CN202092817U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105181233A (en) * | 2015-05-27 | 2015-12-23 | 慈溪市华东压力表有限公司 | Nonlinear display pressure gauge |
| CN105181233B (en) * | 2015-05-27 | 2018-06-05 | 慈溪市华东压力表有限公司 | A kind of non-linear display pressure gauge |
| CN109616003A (en) * | 2019-01-31 | 2019-04-12 | 浙江理工大学 | A kind of mechanical kinetic energy transmission teaching guidance model |
| CN111189575A (en) * | 2020-01-14 | 2020-05-22 | 秦亚州 | Limit amplification disassembly-free pressure gauge capable of calibrating zero setting |
| CN118032068A (en) * | 2024-04-11 | 2024-05-14 | 鸿舸半导体设备(上海)有限公司 | Venturi type mechanical flowmeter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Zhang Shunxian Document name: Notification to Pay the Fees |
|
| 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: 20111228 Termination date: 20200128 |