CN201527321U - Micro-bourdon tube pressure gauge - Google Patents
Micro-bourdon tube pressure gauge Download PDFInfo
- Publication number
- CN201527321U CN201527321U CN2009201997784U CN200920199778U CN201527321U CN 201527321 U CN201527321 U CN 201527321U CN 2009201997784 U CN2009201997784 U CN 2009201997784U CN 200920199778 U CN200920199778 U CN 200920199778U CN 201527321 U CN201527321 U CN 201527321U
- Authority
- CN
- China
- Prior art keywords
- watchcase
- copper sleeve
- bourdon tube
- copper joint
- housing
- 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 provides a micro-bourdon tube pressure gauge which comprises a housing, a bourdon tube, a copper joint, and a transmission amplification mechanism. The copper joint (6) works as the stand for the transmission amplification mechanism (4); a copper joint mounting screw (8) of the copper joint extends to one side of the bottom plate of the housing (5); threads are formed outside the copper joint mounting screw and a through hole connected with the bourdon tube (10) through the inner guiding hole of the copper joint is formed inside the copper joint mounting screw; internal threads are formed on the bottom wall of the housing; and the copper joint mounting screw and the housing are fixedly connected through the internal and external threads. Compared with the prior art, the bourdon tube and the transmission amplification mechanism are mounted on the copper joint to form a measurement component in the utility model, and the mounting head extending at the lower side of the copper joint and the housing are fixedly mounted through threads. Furthermore, the utility model enables the entire measurement component to be properly mounted outside the housing and enables the gauge to perform accurate detection; and not only the installation is convenient and simple, but the rejection rate is reduced to about 2% from 20%.
Description
Technical field the utility model relates to a kind of microsprings hook gauge, and especially a kind of assembly is installed the microsprings hook gauge simpler, that the indicator precision is higher, belongs in the physics hydrodynamic pressure field of measuring technique in the amount of elastic deformation formula.
The background technology bourdon gauges is meant that manometric indicator is to rely on the bourdon tube internal pressure to change and the elastic deformation that causes drives a kind of structure instrument that shows pressure.Bourdon tube generally is to bend to C shape by the flat thin metallic tubd to form, and bourdon tube tube chamber one end and pressure system connect.Principle of work is that intraluminal gas of bourdon tube or fluid pressure also changed thereupon when gas or fluid pressure changed in the system, when pressure by low when progressively increasing, bourdon tube C shape circle opens; Otherwise, then shrink.One end and the watchcase of bourdon tube C shape circle are fixed, and the other end is the movable activity of free end, and is inconjunction with a linkage magnification system, and this mechanism can drive the indicator swing, and indicator shows C shape circle free end travel amount, i.e. pressure data by dial scale.Common bourdon gauges is to be installed on the watchcase by the hole on the copper sleeve with screw, the bourdon tube welding is fixed on the copper sleeve again, and the pipe of guide pressure liquid passes watchcase and inserts the copper sleeve welding, and the guide hole from the bourdon tube to the pipe is arranged in the copper sleeve.Simultaneously, the linkage magnification system in the table also is installed in the watchcase with frame with screw.Whole assembling is carried out in watchcase.
The microsprings hook gauge be meant the table diameter less as at 25mm with interior bourdon gauges, because scope is very little in the watchcase, as being impossible finish with manometric version of above-mentioned ball reed pipe and installation method.So someone has improved its mounting structure, be bourdon tube C shape to be enclosed directly or sealed cap through one again be welded on the kapillary that passes watchcase, again by the bourdon tube coil being fixed on the watchcase with welding or glued method.But this mounting structure that has improved is because welding or glued sealing-off easily or come unstuck, life-span is shorter, therefore there is Chinese utility model patent ZL02203669.5 " microsprings hook gauge assembly " to disclose the structure of fixedlying connected between a kind of bourdon tube and watchcase, comprise " watchcase and interior set bourdon tube thereof, be equipped with in the canned paragraph inner support of described bourdon tube make this canned paragraph and watchcase intert the fixing chock of through-hole wall of this canned paragraph " with center guide hole.Promptly canned paragraph (copper pipe) support is put in watchcase and fix assembly such as bourdon tube with chock.The randomness of putting owing to chock support in this structure is bigger again, such as supports the size and the vibrations degree thereof of putting the degree of depth, supportting the power of putting, and all can have influence on the installation accuracy of assemblies such as bourdon tube; Simultaneously, with the support put fix microsprings hook gauge assembly installation relatively the difficulty, especially to the small pressure table, be easy to cause damage to assemblies such as bourdon tubes.
Summary of the invention is at above-mentioned deficiency, and the utility model is exactly to propose the microsprings hook gauge that a kind of mounting structure is simple, installation accuracy is high.
The microsprings hook gauge that the utility model provides, comprise watchcase, bourdon tube, copper sleeve, linkage magnification system, dial plate and pointer, said copper sleeve is the frame of linkage magnification system simultaneously, copper sleeve extends copper sleeve to a side of watchcase base plate screw is installed, copper sleeve installation screw has outward the through hole that guide hole links to each other with bourdon tube in copper sleeve is arranged in the screw thread, on the watchcase diapire internal thread is arranged, copper sleeve is installed screw and watchcase is connected and fixed through internal and external threads.
Compared with prior art, microsprings hook gauge of the present utility model, because bourdon tube, transmission amplifier module be installed in and constituted a measurement component on the copper sleeve, the installation head that copper sleeve extends with its downside has again adopted and has been threaded and watchcase fixedly mounts.Compared with prior art, it is appropriate accurate, not only easy for installation, simple with detection that prior art makes whole measurement component install outside watchcase, and rejection rate drops to about 2% from about 20%.
The microsprings hook gauge that the utility model provides is equipped with O-ring seal between watchcase and copper sleeve.Prevent that the slit generation leaks in the watchcase between watchcase and installation screw.
The microsprings hook gauge that the utility model provides, be connected with externally threaded watchcase installation head under the watchcase base plate, on the watchcase installation head axis pore is arranged, tensimeter and tensimeter mount pad are to be threaded during installation, and the kapillary that connects pressure system is welded on the tensimeter mount pad; Perhaps tensimeter is directly installed on the pressure system.
Description of drawings Fig. 1 is the installation graph of a relation of the utility model one embodiment, among the figure: 1-panel, 2-pointer, 3-dial plate, 4-linkage magnification system (movement), 5-watchcase, 6-copper sleeve, 7-O RunddichtringO, the 8-copper sleeve is installed screw, 9-watchcase installation head, 10-bourdon tube.
Fig. 2 is the vertical view of Fig. 1 after installing, among the figure: 4-linkage magnification system (movement), 5-watchcase, 6-copper sleeve, 10-bourdon tube.
Embodiment as shown in Figure 1, 2, this routine microsprings hook gauge has panel 1, pointer 2, dial plate 3, movement 4, watchcase 5, copper sleeve 6, O RunddichtringO 7, copper sleeve that screw 8, watchcase installation head 9, bourdon tube 10 are installed.Wherein, one end and the copper sleeve upper pillar stand of bourdon tube partly weld fixing, the other end links to each other with moving member in the movement, the static component of movement also is fixed on the copper sleeve, the flat bottom of copper sleeve is extended copper sleeve through impact briquetting screw is installed, and copper sleeve is installed on the screw axis through hole and guide hole in copper sleeve and the conducting of bourdon tube cavity.Copper sleeve is installed by screw and watchcase adopts thread connecting mode to fix, and the O RunddichtringO is installed between watchcase and copper sleeve, prevents that gas or leak of liquid are to watchcase.Copper sleeve is installed on the watchcase screw of screw is installed is arranged on the watchcase installation head with the watchcase one, the watchcase installation head has external thread, can be threaded with the tensimeter mount pad, on the watchcase installation head axis pore is arranged.The watchcase installation head can be directly installed on the pressure system pressure-bearing cavity or be installed on the tensimeter mount pad that kapillary is connected with pressure system.During assembling at first be on worktable with bourdon tube, with copper sleeve installation head welding and finished copper sleeve and movement welds successively, fixing, form a measurement component integral body, next is to put O type sealed picture outside the copper sleeve installation head, is at last directly to be threaded the copper sleeve installation head fixing with watchcase.Like this, can guarantee easy to assemblyly, help satisfying assembly precision, improve the quality of products.
Claims (3)
1. microsprings hook gauge, comprise watchcase, bourdon tube, copper sleeve, linkage magnification system, dial plate and pointer, it is characterized in that said copper sleeve is the frame of linkage magnification system simultaneously, copper sleeve extends copper sleeve to a side of watchcase base plate screw is installed, copper sleeve installation screw has outward the through hole that guide hole links to each other with bourdon tube in copper sleeve is arranged in the screw thread, on the watchcase diapire internal thread is arranged, copper sleeve is installed screw and watchcase is connected and fixed through internal and external threads.
2. microsprings hook gauge as claimed in claim 1 is characterized in that between watchcase and copper sleeve O-ring seal being housed.
3. microsprings hook gauge as claimed in claim 1 is characterized in that being connected with under the watchcase base plate externally threaded watchcase installation head, on the watchcase installation head axis pore is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201997784U CN201527321U (en) | 2009-10-31 | 2009-10-31 | Micro-bourdon tube pressure gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201997784U CN201527321U (en) | 2009-10-31 | 2009-10-31 | Micro-bourdon tube pressure gauge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201527321U true CN201527321U (en) | 2010-07-14 |
Family
ID=42518606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201997784U Expired - Fee Related CN201527321U (en) | 2009-10-31 | 2009-10-31 | Micro-bourdon tube pressure gauge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201527321U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106706170A (en) * | 2017-03-16 | 2017-05-24 | 慈溪欧卡特仪表科技有限公司 | Pressure gauge having dial plate linearly reduced within large pressure range |
-
2009
- 2009-10-31 CN CN2009201997784U patent/CN201527321U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106706170A (en) * | 2017-03-16 | 2017-05-24 | 慈溪欧卡特仪表科技有限公司 | Pressure gauge having dial plate linearly reduced within large pressure range |
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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: 20100714 Termination date: 20101031 |