CN202141557U - Absolute pressure gauge - Google Patents
Absolute pressure gauge Download PDFInfo
- Publication number
- CN202141557U CN202141557U CN201120222697U CN201120222697U CN202141557U CN 202141557 U CN202141557 U CN 202141557U CN 201120222697 U CN201120222697 U CN 201120222697U CN 201120222697 U CN201120222697 U CN 201120222697U CN 202141557 U CN202141557 U CN 202141557U
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- absolute pressure
- diaphragm
- chamber
- pressure table
- push rod
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Abstract
The utility model provides an absolute pressure gauge, comprising a push rod (5), an upper junctor (1) equipped with a corrugated pipe (4), a dial (6) connected with the upper junctor (1) and possessing a movement in connection with the push rod (5), a lower junctor forming a pressure chamber with the upper junctor (1) and provided with a measure medium channel (31), and a diaphragm (2) arranged in the pressure chamber, dividing the pressure chamber into mutually isolated vacuum chamber (8) and measure medium chamber (9) and connected with the corrugated pipe (4); the push rod (5) is arranged on the diaphragm (2), and the measure medium chamber (9) is communicated with the measure medium channel (31); the upper junctor (1) is in sealed connection with the lower junctor (3) through welding. According to the utility model, the service life of the absolute pressure gauge can be prolonged based on guaranteeing the sealing effect.
Description
Technical field
The utility model relates to the tensimeter technical field, more particularly, relates to a kind of absolute pressure table.
Background technology
The pressure that directly acts on container or body surface is absolute pressure, and absolute pressure is to be starting point with absolute vacuum.And instruments such as the ordinarily manometer that we use usually, vacuum meter, U type pipe to measure the pressure that comes be gauge pressure, gauge pressure is a starting point with atmospheric pressure zero point.So real absolute pressure is gauge pressure and atmospheric pressure sum.
The absolute pressure table is to be benchmark with the absolute pressure zero-bit, measures the instrument of absolute pressure.The measurement that it is applied to monitoring vacuum pump, controls the aspects such as vapor pressure of vacuum packaging mechanical, monitoring condensing pressure or liquid.It can be measured and act on the lip-deep true pressure of testee, and does not receive atmospheric the influence during gaging pressure.
At present, in the absolute pressure table on the existing market, upper connector and lower connector decomposition pressure chamber; The diaphragm that is arranged in the pressure chamber is divided into vacuum chamber and measuring media chamber with pressure chamber; Medium compressing diaphragm in the measuring media chamber makes diaphragm produce displacement, and displacement is passed to the push rod that is fixed on the diaphragm; Thereby push rod is transferred to displacement on the manometric pointer through displacement amplification on the manometric movement and angular transition mechanism, has realized the measurement of pressure.In the above-mentioned absolute pressure table; Realize sealing through rubber seal between upper connector and the lower connector; After but above-mentioned absolute pressure table has been grown service time; Rubber seal can be corroded, wear out or follow the string and then cause poorly sealed situation, finally causes the absolute pressure table to damage, and has seriously shortened the serviceable life of absolute pressure table.
In sum, how to provide under a kind of prerequisite that realizes sealing, the absolute pressure table that increases the service life is present those skilled in the art's problem demanding prompt solution.
The utility model content
In view of this, the utility model provides a kind of absolute pressure table, under the prerequisite that guarantees the sealing of absolute pressure table, improves the serviceable life of absolute pressure table.
In order to achieve the above object, the utility model provides following technical scheme:
A kind of absolute pressure table comprises:
Push rod;
In be provided with the upper connector of corrugated tube;
Link to each other with said upper connector, and have the dial plate of the movement that links to each other with said push rod;
With the lower connector in said upper connector decomposition pressure chamber, it is provided with the measuring media passage;
Be arranged in the said pressure chamber, said pressure chamber is divided into the vacuum chamber of mutual isolation and the diaphragm in measuring media chamber, said diaphragm links to each other with said corrugated tube, and said push rod is arranged on the said diaphragm, and said measuring media chamber communicates with said measuring media passage;
Said upper connector links to each other with said lower connector sealing through welding.
Preferably, in the above-mentioned absolute pressure table, the face that said upper connector and lower connector are relative with said diaphragm is the corrugated face.
Preferably, in the above-mentioned absolute pressure table, said corrugated tube is singel-ply bellows or multiply bellows.
Preferably, in the above-mentioned absolute pressure table, said corrugated tube is a corrugated stainless steel tubing.
Preferably, in the above-mentioned absolute pressure table, the joint of said lower connector is provided with the sealed tube screw thread.
Preferably, in the above-mentioned absolute pressure table, said push rod is arranged on the central axis of said corrugated tube and diaphragm.
Upper connector and lower connector are realized sealing through rubber gasket in the absolute pressure table of mentioning with respect to prior art; Rubber gasket corrosion easily causes poorly sealed problem; Upper connector and lower connector are to realize being tightly connected through the mode of welding in the absolute pressure table that the utility model provides; Avoid the use of rubber gasket, adopted the connected mode of welding to improve the corrosion resistance that upper connector and lower connector are tightly connected, the corrosion resistance that has prolonged the absolute pressure table.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiment of the utility model, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The structural representation of the absolute pressure table that Fig. 1 provides for the utility model embodiment.
Among Fig. 1:
Upper connector 1, diaphragm 2, lower connector 3, corrugated tube 4, push rod 5, dial plate 6, indicator 7, vacuum chamber 8, measuring media chamber 9, measuring media passage 31.
Embodiment
The utility model provides a kind of absolute pressure table, under the prerequisite that guarantees the sealing of absolute pressure table, has prolonged the serviceable life of absolute pressure table.
To combine the accompanying drawing among the utility model embodiment below, the technical scheme among the utility model embodiment is carried out clear, intactly description, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
Please refer to accompanying drawing 1, the structural representation of the absolute pressure table that Fig. 1 provides for the utility model embodiment.
The absolute pressure table that the utility model embodiment provides comprises: upper connector 1, corrugated tube 4, push rod 5, dial plate 6, lower connector 3 and diaphragm 2, wherein:
Corrugated tube 4 is arranged on the inside of upper connector 1, and push rod 5 is arranged on the diaphragm 2;
Dial plate 6 is arranged on the upper connector 1, and the movement in this dial plate 6 links to each other with push rod 5;
Lower connector 3 and upper connector 1 decomposition pressure chamber, lower connector 3 is provided with measuring media passage 31;
Upper connector 1 links to each other with lower connector 3 sealings through welding.
The course of work of the absolute pressure table that the utility model embodiment provides is following: measuring media enters into measuring media chamber 9 through measuring media passage 31; And compressing diaphragm 2; The distortion of diaphragm 2 drives corrugated tube 4 distortion; Corrugated tube 4 drives push rods 5 and moves, and push rod 5 passes on the pointer 7 through displacement amplification on the movement and angular transition mechanism again, and the rotation through pointer 7 shows corresponding absolute pressure force value on dial plate 6.
Realize sealing with respect to upper connector and lower connector in the absolute pressure table of the prior art through rubber gasket; In the absolute pressure table that the utility model embodiment provides; Upper connector 1 is realized being tightly connected with the mode of lower connector 3 through welding; Avoid the use of rubber gasket, adopted the connected mode of welding to improve the corrosion resistance that upper connector 1 and lower connector 3 are tightly connected, the corrosion resistance that has prolonged the absolute pressure table.
In the absolute pressure table that provides in the present embodiment, diaphragm 2 is arranged in the pressure chamber of upper connector 1 and lower connector 3 compositions, and upper connector 1 is the corrugated face with lower connector 3 and diaphragm 2 relative faces.Because the absolute pressure table is in the process of work; Can deform after diaphragm 2 is under pressure, line shape face can take place in the surface of diaphragm 2, and this line shape face can contact with 3 on the other side of upper connector 1 and lower connectors; In order to realize better contact; Prevent diaphragm is produced extrusion damage, above-mentioned upper connector 1 is the corrugated face with lower connector 3 and diaphragm 2 relative faces, has realized the good applying of above-mentioned diaphragm 2.
In the absolute pressure table that provides in the present embodiment, corrugated tube 4 is to be singel-ply bellows, also can be multiply bellows.Concrete corrugated tube 4 can adopt other materials to process, and is preferred, and above-mentioned corrugated tube 4 adopts corrugated stainless steel tubing, is applicable in mordant gas and liquid environment and uses.
For ease being connected of absolute pressure table and measured medium pipeline, the joint of above-mentioned lower connector 3 is provided with the sealed tube screw thread, has made things convenient for the dismounting of whole absolute pressure table.
Provide in the foregoing description in the absolute pressure table, push rod 5 links to each other with diaphragm 2, and along with the distortion push rod 5 of diaphragm 2 moves, preferred, above-mentioned push rod 5 is arranged on the central axis of said diaphragm 2.Certain above-mentioned push rod 5 can also be arranged on other positions of diaphragm 2, as long as guarantee that the deformation of diaphragm 2 can drive push rod 5 and move.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the utility model.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined General Principle can realize under the situation of spirit that does not break away from the utility model or scope in other embodiments among this paper.Therefore, the utility model will can not be restricted to these embodiment shown in this paper, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (6)
1. absolute pressure table comprises:
Push rod (5);
In be provided with the upper connector (1) of corrugated tube (4);
Link to each other with said upper connector (1), and have the dial plate (6) of the movement that links to each other with said push rod (5);
With the lower connector (3) in said upper connector (1) decomposition pressure chamber, it is provided with measuring media passage (31);
Be arranged in the said pressure chamber; Said pressure chamber is divided into the vacuum chamber (8) of mutual isolation and the diaphragm (2) of measuring media chamber (9); Said diaphragm (2) links to each other with said corrugated tube (4); Said push rod (5) is arranged on the said diaphragm (2), and said measuring media chamber (9) communicates with said measuring media passage (31);
It is characterized in that said upper connector (1) links to each other with said lower connector (3) sealing through welding.
2. absolute pressure table according to claim 1 is characterized in that, said upper connector (1) and lower connector (3) are the corrugated face with the relative face of said diaphragm (2).
3. absolute pressure table according to claim 2 is characterized in that, said corrugated tube (4) is singel-ply bellows or multiply bellows.
4. absolute pressure table according to claim 3 is characterized in that, said corrugated tube (4) is a corrugated stainless steel tubing.
5. absolute pressure table according to claim 1 is characterized in that, the joint of said lower connector (3) is provided with the sealed tube screw thread.
6. according to any described absolute pressure table among the claim 1-5, it is characterized in that said push rod (5) is arranged on the central axis of said corrugated tube (4) and diaphragm (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120222697U CN202141557U (en) | 2011-06-28 | 2011-06-28 | Absolute pressure gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120222697U CN202141557U (en) | 2011-06-28 | 2011-06-28 | Absolute pressure gauge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202141557U true CN202141557U (en) | 2012-02-08 |
Family
ID=45552612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120222697U Expired - Fee Related CN202141557U (en) | 2011-06-28 | 2011-06-28 | Absolute pressure gauge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202141557U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104596698A (en) * | 2013-10-31 | 2015-05-06 | 上海赛途仪器仪表有限公司 | Diaphragm-type differential pressure gauge |
| CN106197792A (en) * | 2015-05-26 | 2016-12-07 | Wika亚历山大·威甘德欧洲股份两合公司 | There is the leaf spring type piezometer of control function |
| CN106706200A (en) * | 2016-11-16 | 2017-05-24 | 罗子懿 | Pressure detector and manufacturing method thereof |
| CN109696273A (en) * | 2019-03-06 | 2019-04-30 | 武汉飞恩微电子有限公司 | Automobile brake boosting vacuum pressure sensor device |
| CN111780917A (en) * | 2020-06-08 | 2020-10-16 | 重庆昆仑仪表有限公司 | Absolute pressure gauge |
-
2011
- 2011-06-28 CN CN201120222697U patent/CN202141557U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104596698A (en) * | 2013-10-31 | 2015-05-06 | 上海赛途仪器仪表有限公司 | Diaphragm-type differential pressure gauge |
| CN106197792A (en) * | 2015-05-26 | 2016-12-07 | Wika亚历山大·威甘德欧洲股份两合公司 | There is the leaf spring type piezometer of control function |
| CN106706200A (en) * | 2016-11-16 | 2017-05-24 | 罗子懿 | Pressure detector and manufacturing method thereof |
| CN106706200B (en) * | 2016-11-16 | 2019-02-22 | 罗子懿 | A kind of manufacturing method of pressure detector |
| CN109696273A (en) * | 2019-03-06 | 2019-04-30 | 武汉飞恩微电子有限公司 | Automobile brake boosting vacuum pressure sensor device |
| CN111780917A (en) * | 2020-06-08 | 2020-10-16 | 重庆昆仑仪表有限公司 | Absolute pressure gauge |
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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: 20120208 Termination date: 20170628 |