CN203470023U - Centrifuge pipe cover structure for freeze-drying - Google Patents
Centrifuge pipe cover structure for freeze-drying Download PDFInfo
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- CN203470023U CN203470023U CN201320527990.5U CN201320527990U CN203470023U CN 203470023 U CN203470023 U CN 203470023U CN 201320527990 U CN201320527990 U CN 201320527990U CN 203470023 U CN203470023 U CN 203470023U
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- Prior art keywords
- freeze
- drying
- layer
- filter paper
- cover
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Abstract
The utility model discloses a centrifuge pipe cover structure for freeze-drying. The centrifuge pipe cover structure comprises a centrifuge pipe and a cover, wherein the cover is of a ring structure the upper and lower parts of which are transparent; a thread structure is arranged below the inner wall surface of the ring, a three-layer protruding grooves is formed above the ring inner wall surface, and the groove is respectively provided with a first filter screen layer, a filter paper layer and a second filter screen layer. The centrifuge pipe cover structure for the freeze-drying, provided by the utility model, has the advantages that the centrifuge pipe cover is connected with a centrifuge pipe opening through the thread structure, the operation difficulty of an operator is reduced, the groove formed above the ring inner wall surface of an outer cover is internally provided with a three-layer structure, the first filter screen layer and the second filter screen layer which are arranged on the two sides of the filter paper layer can play the good role in fixing the filter paper layer, a condition that the cover produced by a piece of filter paper is washed away because of pressure difference generated in the freeze-drying process and the surface convection action is avoided.
Description
Technical field
The utility model relates in chemical experiment for holding the glass container of sample, is specifically related to a kind of as freeze-drying centrifuge tube cap structure.
Background technology
Refrigeration Technique is exactly containing large quantity of moisture material, lower the temperature in advance and be frozen into solid, then under the condition of vacuum, make water vapour directly distil out, and in the left ice shelf when freezing of material itself, therefore its dry after constancy of volume, loose porously when distillation, to absorb heat.Protein freeze-drying at present is generally carried out in centrifuge tube, wherein adopt filter paper using centrifugal ferrule as lid, at the centrifugal mouth of pipe, adopt the wrapping of belt tying, this structure has not only increased operator's operation easier, and because freeze-drying is to lower the temperature to be in advance frozen into solid, then under the condition of vacuum, makes water vapour directly distil out, in this process, produced certain pressure differential, produce surperficial convection current, the lid that filter paper may be made washes away, and makes experimentation occur mistake.
Utility model content
The utility model is mainly the problem existing in above-mentioned technology, provide a kind of as freeze-drying centrifuge tube cap structure, this cap structure is connected with centrifuge tube opening by helicitic texture, reduced operator's operation easier, in addition the three-decker being provided with in the internal face upper grooves of lid annular, wherein be located at first of filter paper layer both sides and filter stratum reticulare and the and filter net-layer structure, play the effect of good fixedly filter paper layer, avoided the pressure differential producing in freeze-drying process, and surperficial convection action, and the lid that filter paper is made washes away.
The utility model solves the technical scheme that its technical problem adopts: a kind of as freeze-drying centrifuge tube cap structure, comprise centrifuge tube and lid, described lid is upper and lower penetrating cirque structure, below the internal face of annular, be provided with helicitic texture, the internal face top of described annular is provided with three layers of outstanding groove, and the first filtration stratum reticulare, filter paper layer, second that described groove is respectively equipped with are filtered stratum reticulare.
Compared with prior art, have the following advantages: of the present utility modelly with centrifuge tube lid, by helicitic texture, be connected with centrifuge tube opening as freeze-drying, reduced operator's operation easier, in addition the three-decker being provided with in the internal face upper grooves of lid annular, wherein be located at first of filter paper layer both sides and filter stratum reticulare and the and filter net-layer structure, play the effect of good fixedly filter paper layer, avoided the pressure differential producing in freeze-drying process, and surperficial convection action, and the lid that filter paper is made washes away.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Shown in figure: 1, centrifuge tube, 2, lid, 3, screw thread, 4, first filters stratum reticulare, and 5, filter paper layer, 6, second filters stratum reticulare.
The specific embodiment
Below by specific embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.
As shown in Figure 1, the utility model is a kind of as freeze-drying centrifuge tube cap structure, comprise centrifuge tube 1 and lid 2, described lid is upper and lower penetrating cirque structure, below the internal face of annular, be provided with screw thread 3 structures, the internal face top of described annular is provided with three layers of outstanding groove, and the first filtration stratum reticulare 4, filter paper layer 5, second that described groove is respectively equipped with are filtered stratum reticulare 6.
During actual use, as freeze-drying, with centrifuge tube lid, by helicitic texture, be connected with centrifuge tube opening, reduced operator's operation easier, in addition the three-decker being provided with in the internal face upper grooves of lid annular, wherein be located at first of filter paper layer both sides and filter stratum reticulare and the and filter net-layer structure, play the effect of good fixedly filter paper layer, avoided the pressure differential producing in freeze-drying process, and surperficial convection action, and the lid that filter paper is made washes away.
Above-described embodiment is a kind of preferably scheme of the present utility model, not the utility model is done to any pro forma restriction, also has other variant and remodeling under the prerequisite that does not exceed the technical scheme that claim records.
Claims (1)
1. one kind is used as freeze-drying centrifuge tube cap structure, comprise centrifuge tube (1) and lid (2), it is characterized in that, described lid is upper and lower penetrating cirque structure, below the internal face of annular, be provided with screw thread (3) structure, the internal face top of described annular is provided with three layers of outstanding groove, and the first filtration stratum reticulare (4), filter paper layer (5), second that described groove is respectively equipped with are filtered stratum reticulare (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320527990.5U CN203470023U (en) | 2013-08-28 | 2013-08-28 | Centrifuge pipe cover structure for freeze-drying |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320527990.5U CN203470023U (en) | 2013-08-28 | 2013-08-28 | Centrifuge pipe cover structure for freeze-drying |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203470023U true CN203470023U (en) | 2014-03-12 |
Family
ID=50218441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320527990.5U Expired - Fee Related CN203470023U (en) | 2013-08-28 | 2013-08-28 | Centrifuge pipe cover structure for freeze-drying |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203470023U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112916070A (en) * | 2021-01-25 | 2021-06-08 | 上海快灵生物科技有限公司 | Biochemical test tube |
-
2013
- 2013-08-28 CN CN201320527990.5U patent/CN203470023U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112916070A (en) * | 2021-01-25 | 2021-06-08 | 上海快灵生物科技有限公司 | Biochemical test tube |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20140312 Termination date: 20160828 |