CN2082194U - Metallic dewar flask - Google Patents
Metallic dewar flask Download PDFInfo
- Publication number
- CN2082194U CN2082194U CN90224593U CN90224593U CN2082194U CN 2082194 U CN2082194 U CN 2082194U CN 90224593 U CN90224593 U CN 90224593U CN 90224593 U CN90224593 U CN 90224593U CN 2082194 U CN2082194 U CN 2082194U
- Authority
- CN
- China
- Prior art keywords
- bottle
- dewar flask
- utility
- dewar
- glass
- 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.)
- Withdrawn
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- Thermally Insulated Containers For Foods (AREA)
- Packages (AREA)
Abstract
The utility model relates to a metallic Dewar flask. The laboratories of metering, scientific research mechanisms and colleges and universities all use glass Dewar flasks; the glass Dewar flask is easy to explode and disintegrate. While the common metal vacuum container is incapable to detect the change of internal vacuum degree, and therefore, has inconvenient use. The Dewar flask of the utility model has a dual-metal jacket flask body; the inside of the jacket is vacuumized. The exhaust outlet of the metallic Dewar flask is sealed and connected by kovar alloy-glass gauge tubes; therefore, the utility model overcomes the defects existing in the prior art; the service life of the Dewar flask is enhanced; the detection of the internal vacuum degree becomes probable and is very convenient.
Description
The utility model relates to a kind of vessels not under pressure with provision for thermal insulation, particularly a kind of heat insulation metal Dewar bottle of vacuum mode that adopts.
In departments such as metering, scientific research, military project and universities and colleges laboratory, carry out the transmission of quantity value work for inspection generally to use the glass Dewar bottle at present, this glass Dewar bottle is easily fried, frangible, dangerous.
The purpose of this utility model is to provide a kind of Dewar bottle of new structure, and it can overcome existing shortcoming in the above-mentioned prior art.
The purpose of this utility model is achieved in that it comprises bottle, loam cake and support, it is characterized in that bottle is the double-level-metal chuck, vacuumizes in the chuck, and kovar alloy---glass is regulated sealed knot in its exhaust outlet employing.
Above-mentioned is basic structure of the present utility model, owing to adopted this structure, so overcome the frangible easily fried shortcoming of glass Dewar bottle, overcome the metal vacuum container simultaneously and can't detect shortcomings such as the internal vacuum variation and the difficulty of finding time once more, is improved the service life of Dewar bottle, and uses convenient.
For the heat-insulating property that makes metal Dewar bottle of the present utility model further improves, use conveniently, can add a shell in outside bottle, filling heat-barrier material between shell and bottle, and can under support, be provided with caster wheel.
Below in conjunction with embodiment and accompanying drawing thereof the utility model is described in further detail.
Fig. 1 is the structural representation of a kind of specific embodiment of the utility model.
As shown in Figure 1, the double-level-metal chuck that bottle is made up of outer courage 13 and inner bag 9, the bottle cover plate 14 that is welded with suitable for reading vacuumizes in the chuck, and its exhaust outlet is located at the bottom, and after vacuumizing, exhaust outlet is by kovar alloy---and glass is regulated envelope mouth 4 sealed knots.Be provided with support in the bottle bottom, support constitutes by overlapping bucket 15 and supporting plate 3 and base plate 2.For tamper seal mouth 4, air ring 5 is housed on supporting plate 3, and has through hole at the center of supporting plate 3, below cover bucket 15, base plate 2 is housed.For making the Dewar bottle conveniently moving, caster wheel 1 is housed below the support, shell 6 is provided with handle 7, on bottle top loam cake 11 is housed, sealing property for conduction of the heat between minimizing bottle and the loam cake 11 and increase bottleneck, at bottle mouth position the upper cover plate 10 that heat-barrier material is made is housed, has handle 12 on the loam cake 11.
Claims (3)
1, a kind of metal Dewar bottle, it comprises bottle, loam cake and support, it is characterized in that bottle is the double-level-metal chuck, vacuumizes in the chuck, its exhaust outlet adopts kovar alloy-glass to regulate sealed knot.
2, metal Dewar bottle according to claim 1 is characterized in that bottle is provided with shell outward, filling heat-barrier material between shell and the bottle.
3, metal Dewar bottle according to claim 1 and 2 is characterized in that frame bottom is equiped with caster wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN90224593U CN2082194U (en) | 1990-12-07 | 1990-12-07 | Metallic dewar flask |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN90224593U CN2082194U (en) | 1990-12-07 | 1990-12-07 | Metallic dewar flask |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2082194U true CN2082194U (en) | 1991-08-07 |
Family
ID=4902146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN90224593U Withdrawn CN2082194U (en) | 1990-12-07 | 1990-12-07 | Metallic dewar flask |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2082194U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114324429A (en) * | 2021-12-10 | 2022-04-12 | 浙江大学杭州国际科创中心 | Sample freezing and transmission integrated device for scanning electron microscope |
-
1990
- 1990-12-07 CN CN90224593U patent/CN2082194U/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114324429A (en) * | 2021-12-10 | 2022-04-12 | 浙江大学杭州国际科创中心 | Sample freezing and transmission integrated device for scanning electron microscope |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| 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 |