CN203235543U - Mortar protective cover applicable to grinding plant veins by liquid nitrogen - Google Patents
Mortar protective cover applicable to grinding plant veins by liquid nitrogen Download PDFInfo
- Publication number
- CN203235543U CN203235543U CN 201320281036 CN201320281036U CN203235543U CN 203235543 U CN203235543 U CN 203235543U CN 201320281036 CN201320281036 CN 201320281036 CN 201320281036 U CN201320281036 U CN 201320281036U CN 203235543 U CN203235543 U CN 203235543U
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- mortar
- protective cover
- cover
- liquid nitrogen
- body shell
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Abstract
The utility model provides a mortar protective cover applicable to grinding plant veins by liquid nitrogen. The mortar protective cover is characterized by comprising an oval cover body shell; the upper half part of the cover body shell is in a double-layered structure; the top of the cover body shell is provided with a cover opening; the lower end edge on one side of the double-layered structure is matched with the upper end face of a handle nozzle of a mortar; and the other side of the double-layered structure downward stretches to cover the part of the mortar and is matched with a sector-shaped tangent plane of the outer wall face of the mortar. When the mortar protective cover provided by the utility model is used, a mortar rod is inserted into an opening in the top end from the inner part of the protective cover; suitable amount of the liquid nitrogen and a tobacco vein sample are added into the mortar and the protective cover is bucked on the mortar; and a person tightly holds the protective cover by one hand to fix the protective cover on a horizontal tabletop, namely tobacco veins can be safely and effectively grinded. Due to the adoption of the protective cover provided by the utility model, not only can fingers of operators be prevented from being coldly injured and the safety be guaranteed, but also the samples are prevented from being mutually polluted and the test data is accurate.
Description
Technical field
The utility model belongs to the biological apparatus that grinds, and specifically a kind of mortar protective cover that is applicable to the liquid nitrogen grinding plant leaf vein can be applicable to extract tobacco vein RNA or other plant and extracts RNA.
Background technology
Vein weight generally accounts for full leaf and weighs about 25%, is support blade, carries moisture, nutrient and organic important channel, is one of important research object of biological tobacco research field.Existing grinding means are to be with gloves, and the contact mortar grinds between the both hands, and the researcher finds that there is following problem in existing grinding means in operating process: vein becomes harder behind liquid nitrogen frozen, grind relatively difficulty; Sample easily spills in process of lapping, causes the pollution of sample room; Mortar temperature after cooled with liquid nitrogen is lower in addition, and frostbite operating personnel's hand very easily, and the gloves band is too thick and heavy operates and dumb.These factors both can cause potential safety hazard to operating personnel, also can affect the subsequent experimental result of study.
Summary of the invention
A kind of protective cover that is applicable to the liquid nitrogen grinding plant leaf vein that the purpose of this utility model provides for above-mentioned current condition just utilizes this protective cover can finish vein and grinds, and can protect again operator safety and avoid sample contamination, and very easy to use.
The purpose of this utility model is achieved through the following technical solutions:
A kind of mortar protective cover that is applicable to the liquid nitrogen grinding plant leaf vein; the cover body shell that comprises ovalize; the cover body shell first half is double-decker; the cover body cover top portion offers the cover mouth; double-decker one side lower end edge cooperates the mouth upper surface with mortar, and opposite side partly wraps up mortar and is fan-shaped tangent plane with the mortar outside wall surface to downward-extension and cooperates.
Its lower end edge and mortar bottom surface were in same level when cover body shell and mortar were used in conjunction with, and cover body shell lower end edge can be designed to the flange form supporting construction, the resistance to overturning when using with assurance.
Material of the present utility model is the organic plastics transparent material, can implement to observe polishing progress.
When the utility model uses; the mortar rod is inserted the tip shroud mouth from protective cover inside; in mortar, add an amount of liquid nitrogen and tobacco vein sample; then protective cover is buckled above mortar; the hand-tight protective cover of holding is fixed on the horizontal table top, and namely can carrying out safely and effectively, the tobacco vein grinds.Not only can avoid operating personnel's frostbite finger by protective cover of the present utility model, ensure safety, can also avoid the mutual pollution of sample room, guarantee that test data is accurate.
Description of drawings
Fig. 1 is structural representation of the present utility model;
1. covers mouthful wherein, 2. mortar mouth, 3. double-decker, 4. cover body shell, 5. cover body shell lower end edge, 6. tangent plane cooperation place, 7. mortar.
The specific embodiment
The utility model is further described below in conjunction with accompanying drawing:
As shown in Figure 1: a kind of mortar protective cover that is applicable to the liquid nitrogen grinding plant leaf vein; the cover body shell 4 that comprises ovalize; the cover body shell first half is double-decker 3; the cover body cover top portion offers cover mouth 1; cover mouth 1 is funnel-shaped structure; double-decker 3 one side lower end edges cooperate mouth 2 upper surfaces with mortar, and opposite side partly wraps up mortar and is fan-shaped tangent plane with the mortar outside wall surface to downward-extension and cooperates (label 6).
Its lower end edge 5 was in same level with the mortar bottom surface when cover body shell 4 was used in conjunction with mortar 7, and cover body shell lower end edge 5 can be designed to the flange form supporting construction, the resistance to overturning when using with assurance.
Material of the present utility model is the organic plastics transparent material, can implement to observe polishing progress.
Claims (2)
1. mortar protective cover that is applicable to the liquid nitrogen grinding plant leaf vein; it is characterized in that: the cover body shell that comprises ovalize; the cover body shell first half is double-decker; the cover body cover top portion offers the cover mouth; double-decker one side lower end edge cooperates the mouth upper surface with mortar, and opposite side partly wraps up mortar and is fan-shaped tangent plane with the mortar outside wall surface to downward-extension and cooperates.
2. the mortar protective cover that is applicable to the liquid nitrogen grinding plant leaf vein according to claim 1, it is characterized in that: its lower end edge and mortar bottom surface were in same level when cover body shell and mortar were used in conjunction with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320281036 CN203235543U (en) | 2013-05-22 | 2013-05-22 | Mortar protective cover applicable to grinding plant veins by liquid nitrogen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320281036 CN203235543U (en) | 2013-05-22 | 2013-05-22 | Mortar protective cover applicable to grinding plant veins by liquid nitrogen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203235543U true CN203235543U (en) | 2013-10-16 |
Family
ID=49312879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320281036 Expired - Fee Related CN203235543U (en) | 2013-05-22 | 2013-05-22 | Mortar protective cover applicable to grinding plant veins by liquid nitrogen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203235543U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105372201A (en) * | 2015-10-30 | 2016-03-02 | 连云港市产品质量监督检验中心 | Sample wafer making device with microscopic infrared biological material |
-
2013
- 2013-05-22 CN CN 201320281036 patent/CN203235543U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105372201A (en) * | 2015-10-30 | 2016-03-02 | 连云港市产品质量监督检验中心 | Sample wafer making device with microscopic infrared biological material |
| CN105372201B (en) * | 2015-10-30 | 2018-03-16 | 连云港市产品质量监督检验中心 | A kind of infrared microscopy biomaterial sample preparation sheet devices |
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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 |
Granted publication date: 20131016 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |