CN2306495Y - Bimetallic multi-turn number spring pipe - Google Patents
Bimetallic multi-turn number spring pipe Download PDFInfo
- Publication number
- CN2306495Y CN2306495Y CN 97235488 CN97235488U CN2306495Y CN 2306495 Y CN2306495 Y CN 2306495Y CN 97235488 CN97235488 CN 97235488 CN 97235488 U CN97235488 U CN 97235488U CN 2306495 Y CN2306495 Y CN 2306495Y
- Authority
- CN
- China
- Prior art keywords
- utility
- model
- spring pipe
- bourdon tube
- turn
- 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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Abstract
The utility model provides a bimetallic multi-turn spring pipe, which is used for measuring temperatures. The utility model is characterized in that two metallic pieces which are composed of an active layer and a passive layer are welded into a multi-turn spring pipe, one end of the spring pipe which can also be directly connected with a pressure source is connected with a temperature bulb by a capillary pipe, and the other end is connected with a pointer. The utility model is used for measuring pressure or the temperatures. The utility model has the advantages that the output torque is big, and the utility model brings convenience to actual use.
Description
The utility model relates to the flexible member field of tensimeter or thermometric instrument, belongs to multi-turn bourdon tube that thermometal forms specifically and is used for flexible member on the pressure type thermometric instrument, directly indicates a kind of parts of its indicating value.
Employed bourdon tube on the pressure type thermometric instrument at present, be generally C shape pipe, as shown in Figure 1, when environment temperature-10 degree or+when changing between 15 degree C shape bourdon tube influenced by it bigger, shown in the dotted line among the figure, this C shape Guan Ruo does not increase the compensation system of temperature variation, influences the precision of whole instrument, and the moment of output is bigger, can not satisfy to use and go up the needs that need big output torque.
It is big that the purpose of this utility model provides output torque, can produce a temperature compensation automatically under ambient temperature effect, and need not directly to drive by gear trains such as gears a kind of thermometal multi-turn bourdon tube of gauge pointer.
For finishing the technical scheme that above-mentioned purpose is taked: two kinds of sheet metals are welded and are multi-turn shape bourdon tube, two sheet metals are divided into active layers and passive layer.When an end of multi-turn bourdon tube connects thermometer bulb by kapillary, other end fixed pointers, kapillary fills in the thermometer bulb and puts temperature sensing medium, reaches direct drive pointer, the pointer measured value.
The utility model is because thermometal is formed the multi-turn bourdon tube, expansion coefficient difference between two sheet metals, influenced by ambient temperaturely can produce a temperature compensation automatically each other, improve the precision of whole instrument, because an end of bimetallic spring pipe directly is connected with the pointer of instrument, do not need gear train simultaneously, directly the indicated temperature value as gear and so on, and the output torque of multi-turn bourdon tube is big, makes instrument drive accessories apparatus.
The utility model embodiment is described in detail in conjunction with the accompanying drawings.
Fig. 1 is common C shape bourdon tube;
Fig. 2 is the utility model structural drawing;
According to shown in Figure 2, two kinds of sheet metal edges are welded as a whole, and it is rolled into multi-turn shape bourdon tube, form by active layers 1 and passive layer 2, one end of multi-turn bourdon tube connects pressure source or connects thermometer bulb 4 by kapillary 3, the other end fixed pointers 5 of bourdon tube, an end of bourdon tube also can connect the pressure source gaging pressure and use.
Claims (1)
1, a kind of thermometal multi-turn bourdon tube of being made up of sheet metal is characterized in that being made up of active layers (1) and passive layer (2) welding of two kinds of sheet metals and the multi-turn shape bourdon tube that is rolled into.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97235488 CN2306495Y (en) | 1997-09-11 | 1997-09-11 | Bimetallic multi-turn number spring pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97235488 CN2306495Y (en) | 1997-09-11 | 1997-09-11 | Bimetallic multi-turn number spring pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2306495Y true CN2306495Y (en) | 1999-02-03 |
Family
ID=33946573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97235488 Expired - Fee Related CN2306495Y (en) | 1997-09-11 | 1997-09-11 | Bimetallic multi-turn number spring pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2306495Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102798478A (en) * | 2012-08-10 | 2012-11-28 | 毛陈 | Gas thermometer |
-
1997
- 1997-09-11 CN CN 97235488 patent/CN2306495Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102798478A (en) * | 2012-08-10 | 2012-11-28 | 毛陈 | Gas thermometer |
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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 |