CN2227329Y - Pressure thermometer with special-shaped multi-circle spring pipe - Google Patents
Pressure thermometer with special-shaped multi-circle spring pipe Download PDFInfo
- Publication number
- CN2227329Y CN2227329Y CN 94239882 CN94239882U CN2227329Y CN 2227329 Y CN2227329 Y CN 2227329Y CN 94239882 CN94239882 CN 94239882 CN 94239882 U CN94239882 U CN 94239882U CN 2227329 Y CN2227329 Y CN 2227329Y
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- CN
- China
- Prior art keywords
- utility
- model
- temperature
- thermometer
- special
- 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 special-shaped pressure type thermometer with multiple circles of spring pipes. The utility model is characterized in that capillaries are connected with spring pipes; the shape of one side of the utility model is a plane, and the shape of the other side of the utility model is convex. The utility model keeps the strength requirement of spring pipes, microminiaturizes thermometer bulbs, satisfies the need of temperature measuring ranges with small measuring ranges, has shock resisting performance, press resisting performance and high stability and satisfies linearity under operating conditions under normal temperature, high temperature and low temperature.
Description
The utility model relates to the temperature measuring instrument field, specifically because temperature variation makes the interior temperature sensing medium producing pressure by using temperature caused expansion and contraction or the volume-variation of thermometer bulb of thermometric, thereby send into bourdon tube by capillary channel, make bourdon tube produce a displacement, promptly drive meter pointer, indicate a kind of temperature measuring equipment of temperature value.
Gong Ying pressure-type thermometer in the market, the volume of its thermometer bulb is bigger, especially under a small amount of journey temperature-measuring range operating mode, thermometer bulb requires miniaturization still can not satisfy, in the past for making thermometer bulb accomplish miniaturization, respectively bourdon tube is made oblateness etc., the temp measuring system internal capacity is dwindled, meet the requirement of journey temperature-measuring range in a small amount to reach the thermometer bulb miniaturization, but effect is not ideal, is designed to be the plane in the recent period on one side, the both sides of another side are convex, though can keep desired strength, and can satisfy journey measurement range in a small amount, make thermometer bulb more small-sized to bourdon tube, but require microminiaturized, there is certain distance, and is that movement need be set, can't accomplish linearity at normal temperatures.
The purpose of this utility model provides a kind of desired strength that had both kept bourdon tube, and can satisfy journey temperature-measuring range in a small amount, make the thermometer bulb microminiaturization, and can omit movement and not have hairspring, shatter-proof, withstand voltage high stable performance all can reach linear special-shaped multi-turn pressure-spring thermometer under normal temperature and high low temperature.
For finishing the technical scheme that above-mentioned purpose is taked: for dwindling survey is warm internal system volume, makes the thermometer bulb microminiaturization, satisfies the needs of journey temperature-measuring range in a small amount, and bourdon tube is designed to special-shaped multi-turn, on one side promptly bourdon tube is the plane, another side is a convex.
Be the plane because bourdon tube is designed to one side, another side is a convex, and therefore, its convex both can make thermometer bulb be designed to the miniature straight 8mm that is, length is 20mm, satisfies the requirement of strength of bourdon tube simultaneously, owing to save movement, no hairspring event is shatter-proof and resistance to pressure greatly improves.
The utility model embodiment is described in detail in conjunction with the symbol circle.
Fig. 1 is the utility model structural drawing;
Fig. 2 is the bourdon tube sectional view.
According to shown in Figure 1, kapillary 2 one ends connect thermometer bulb 1, and it is 8mm that its thermometer bulb is made diameter, and length is the miniature thermometer bulb of 20mm, the other end of kapillary 2 is connected with deformed spring pipe 5, the other end of bourdon tube 5 connects enlarger 6, Yi Bian its feature bourdon tube 5 is the plane, another side is provided with convex, as shown in Figure 2, watchcase is provided with dial 4 and pointer 3, because bourdon tube 5 volumes are little, so can do thermometer bulb microminiaturized.
Above-mentioned deformed spring pipe 5 is suitable for simultaneously and is processed into individual pen type bourdon tube, also can be used for ordinarily manometer, and the high low temperature of normal temperature all can reach linear after tested.
Claims (1)
1, the special-shaped multi-turn pressure-spring thermometer in a kind of temperature measuring instrument field, by thermometer bulb (1), enlarger (6), kapillary (2), pointer (3) and dial (4) are formed, it is characterized in that kapillary (2) connects deformed spring pipe (5), bourdon tube (5) shape is the plane on one side, and another side is established convex.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94239882 CN2227329Y (en) | 1994-12-23 | 1994-12-23 | Pressure thermometer with special-shaped multi-circle spring pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94239882 CN2227329Y (en) | 1994-12-23 | 1994-12-23 | Pressure thermometer with special-shaped multi-circle spring pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2227329Y true CN2227329Y (en) | 1996-05-15 |
Family
ID=33847000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94239882 Expired - Fee Related CN2227329Y (en) | 1994-12-23 | 1994-12-23 | Pressure thermometer with special-shaped multi-circle spring pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2227329Y (en) |
-
1994
- 1994-12-23 CN CN 94239882 patent/CN2227329Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |