CN204043808U - A kind of gas pressure type thermometer - Google Patents
A kind of gas pressure type thermometer Download PDFInfo
- Publication number
- CN204043808U CN204043808U CN201420515035.4U CN201420515035U CN204043808U CN 204043808 U CN204043808 U CN 204043808U CN 201420515035 U CN201420515035 U CN 201420515035U CN 204043808 U CN204043808 U CN 204043808U
- Authority
- CN
- China
- Prior art keywords
- bourdon tube
- fixed head
- movement
- sensitive
- temperature
- 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
A kind of gas pressure type thermometer, comprise housing, mounting bracket is provided with in described housing, described mounting bracket is fixed with fixed head, described fixed head is provided with bourdon tube, this bourdon tube one end is the stiff end other end is free end, described bourdon tube stiff end is welded on fixed head lower end and is connected with temperature-sensitive kapillary and filled capillary, described temperature-sensitive capillary end is provided with thermometer bulb, described filled capillary end is provided with seal head, described fixed head is also provided with movement, described movement is provided with pointer axle sleeve, described needle pivot puts and is provided with pointer, described bourdon tube free end is connected with silently, this is silently by the sector gear Joint on a connecting rod and movement, described filled capillary, gassy medium in temperature-sensitive kapillary and bourdon tube.By temperature-sensitive kapillary measuring tempeature, measurement range is large, and precision is high, arranges filled capillary, convenient inflation and the impermeability of guarantee to gas in bourdon tube.
Description
Technical field
The utility model relates to field of thermometers, particularly a kind of gas pressure type thermometer.
Background technology
Volumetric expansion or pressure change is produced as test signal after pressure-type thermometer is the liquid utilized in closed container, gas or saturated vapour are heated.Generally by thermometer bulb, kapillary and indicating gauge three part form; this structure is simple; physical strength is high; be not afraid of vibrations, but be generally all be charged into medium by temperature-sensitive kapillary, then adopt thermometer bulb to seal it; such operation often can make the medium that is filled with, and especially air-loss amount is large; and after machining between thermometer bulb and kapillary, be difficult to supplement medium again, cause final measuring accuracy to reduce.
Summary of the invention
The purpose of this utility model is to solve above-mentioned the deficiencies in the prior art, provides the gas pressure type thermometer that a kind of structure is simple, measuring accuracy is high.
To achieve these goals, a kind of gas pressure type thermometer designed by the utility model, comprise housing, mounting bracket is provided with in described housing, described mounting bracket is fixed with fixed head, described fixed head is provided with bourdon tube, this bourdon tube one end is the stiff end other end is free end, described bourdon tube stiff end is welded on fixed head lower end and is connected with temperature-sensitive kapillary and filled capillary, described temperature-sensitive capillary end is provided with thermometer bulb, described filled capillary end is provided with seal head, described fixed head is also provided with movement, described movement is provided with pointer axle sleeve, described needle pivot puts and is provided with pointer, described bourdon tube free end is connected with silently, this is silently by the sector gear Joint on a connecting rod and movement, described filled capillary, gassy medium in temperature-sensitive kapillary and bourdon tube.Nitrogen is charged into from filled capillary, then seal, thermometer bulb goes the temperature measuring measured matter, by expanding with heat and contract with cold of the nitrogen in bourdon tube, thus drive the rotation of sector gear, reach the display of temperature, nitrogen is filled with owing to adopting independent filled capillary, ensure the content of the nitrogen in bourdon tube, temperature-sensitive kapillary, only for thermometric, can make measuring accuracy high.
Further, described movement is arranged with the first kidney slot, described movement is by being fixed on fixed head through the screw of the first kidney slot, and described sector gear is provided with the second kidney slot, described connecting rod one end be silently connected, the second kidney slot of the other end and sector gear fixes.The position of movement can be adjusted by the first kidney slot, thus the relative position of adjustment connecting rod and sector gear, change the sensitivity of pointer.
Further, the c-shaped setting of described bourdon tube.
Further, described fixed head is screwed on mounting bracket.
A kind of gas pressure type thermometer that the utility model obtains, its technique effect is: by temperature-sensitive kapillary measuring tempeature, and measurement range is large, and precision is high, arranges filled capillary, convenient inflation and the impermeability of guarantee to gas in bourdon tube.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of gas pressure type thermometer of the utility model.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further illustrated.
As shown in Figure 1, a kind of gas pressure type thermometer that the utility model provides, comprise housing, mounting bracket 1 is provided with in described housing, described mounting bracket 1 has been screwed fixed head 7, described fixed head 7 is provided with C type bourdon tube 2, this bourdon tube 2 one end is the stiff end other end is free end, described bourdon tube 2 stiff end is welded on fixed head 7 lower end and is connected with temperature-sensitive kapillary 3 and filled capillary 4, described temperature-sensitive kapillary 3 end is provided with thermometer bulb 5, described filled capillary 4 end is provided with seal head 6, described fixed head 7 is also provided with movement 8, described movement 8 is provided with pointer axle sleeve, described needle pivot puts and is provided with pointer, described bourdon tube 2 free end is connected with silently 9, this is silently 9 by a connecting rod 10 and sector gear 11 Joint on movement 8, described filled capillary 4, gassy medium in temperature-sensitive kapillary 3 and bourdon tube 2.Nitrogen is charged into from filled capillary 4, then seal, thermometer bulb 5 goes the temperature measuring measured matter, by expanding with heat and contract with cold of the nitrogen in bourdon tube 2, thus drive the rotation of sector gear 11, reach the display of temperature, nitrogen is filled with owing to adopting independent filled capillary 4, ensure the content of the nitrogen in bourdon tube 2, temperature-sensitive kapillary 3, only for thermometric, can make measuring accuracy high.
In the present embodiment, described movement 8 is arranged with the first kidney slot 12, described movement 8 is by being fixed on fixed head 7 through the screw of the first kidney slot 12, described sector gear 11 is provided with the second kidney slot 13, described connecting rod 10 one end with silently 9 to be connected, the second kidney slot 13 of the other end and sector gear 11 fixes.The relative position of movement 8 can be adjusted by the first kidney slot 12, thus adjustment connecting rod 10 and the position of sector gear 11, change the sensitivity of pointer.
A kind of gas pressure type thermometer that the utility model obtains, its technique effect is: by temperature-sensitive kapillary 3 measuring tempeature, and measurement range is large, and precision is high, arranges filled capillary 4, convenient inflation and the impermeability of guarantee to gas in bourdon tube 2.
Claims (4)
1. a gas pressure type thermometer, comprise housing, it is characterized in that: in described housing, be provided with mounting bracket, described mounting bracket is fixed with fixed head, described fixed head is provided with bourdon tube, this bourdon tube one end is the stiff end other end is free end, described bourdon tube stiff end is welded on fixed head lower end and is connected with temperature-sensitive kapillary and filled capillary, described temperature-sensitive capillary end is provided with thermometer bulb, described filled capillary end is provided with seal head, described fixed head is also provided with movement, described movement is provided with pointer axle sleeve, described needle pivot puts and is provided with pointer, described bourdon tube free end is connected with silently, this is silently by the sector gear Joint on a connecting rod and movement, described filled capillary, gassy medium in temperature-sensitive kapillary and bourdon tube.
2. gas pressure type thermometer according to claim 1, it is characterized in that: described movement is arranged with a pair first kidney slots, described movement is by being fixed on fixed head through the screw of the first kidney slot, described sector gear is provided with the second kidney slot, described connecting rod one end be silently connected, the second kidney slot of the other end and sector gear fixes.
3. gas pressure type thermometer according to claim 1, is characterized in that: the c-shaped setting of described bourdon tube.
4., according to the arbitrary described gas pressure type thermometer of claim 1-3, it is characterized in that: described fixed head is screwed on mounting bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420515035.4U CN204043808U (en) | 2014-09-02 | 2014-09-02 | A kind of gas pressure type thermometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420515035.4U CN204043808U (en) | 2014-09-02 | 2014-09-02 | A kind of gas pressure type thermometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204043808U true CN204043808U (en) | 2014-12-24 |
Family
ID=52244460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420515035.4U Expired - Fee Related CN204043808U (en) | 2014-09-02 | 2014-09-02 | A kind of gas pressure type thermometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204043808U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105486421B (en) * | 2016-01-28 | 2019-02-12 | 苏州莱测检测科技有限公司 | A kind of new gas thermometer |
| CN115571519A (en) * | 2022-11-18 | 2023-01-06 | 济宁市圣奥精细化工有限公司 | Temperature measuring device for industrial chemicals with monitoring and warning functions |
-
2014
- 2014-09-02 CN CN201420515035.4U patent/CN204043808U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105486421B (en) * | 2016-01-28 | 2019-02-12 | 苏州莱测检测科技有限公司 | A kind of new gas thermometer |
| CN115571519A (en) * | 2022-11-18 | 2023-01-06 | 济宁市圣奥精细化工有限公司 | Temperature measuring device for industrial chemicals with monitoring and warning functions |
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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: 20141224 Termination date: 20160902 |