CN203990689U - A kind of test tube plug is taken test tube easily - Google Patents
A kind of test tube plug is taken test tube easily Download PDFInfo
- Publication number
- CN203990689U CN203990689U CN201420389119.8U CN201420389119U CN203990689U CN 203990689 U CN203990689 U CN 203990689U CN 201420389119 U CN201420389119 U CN 201420389119U CN 203990689 U CN203990689 U CN 203990689U
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- China
- Prior art keywords
- test tube
- plug
- described test
- cap
- hole
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- Expired - Fee Related
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- Investigating Or Analysing Biological Materials (AREA)
- Apparatus Associated With Microorganisms And Enzymes (AREA)
- Devices For Use In Laboratory Experiments (AREA)
Abstract
The utility model discloses a kind of test tube plug and take test tube easily, comprise test tube body and test tube cap, the material of described test tube cap and test tube body is glass, is specially adapted to microorganism, Bacteria Culture or does biochemical identification and use.The longitudinal section of described test tube cap is " T " character form structure, and wherein, the external diameter of described test tube cap upper end is greater than the external diameter of described test tube body, and the external diameter of described test tube cap lower end matches with the internal diameter of test tube body; The center of described test tube cap is provided with test tube plug through hole, is provided with the test tube plug matching with the size of described test tube plug through hole in described test tube plug through hole; Described test tube cap and test tube body are threaded.The utility model can take out test tube plug easily, prevented that expansion due to test tube plug is bad takes off or cooling dwindling causes having space to pollute bacterium or the microorganism cultivated between test tube plug and test tube body simultaneously, and test tube plug can be changed as required, also more easily clean.
Description
Technical field
The utility model relates to a kind of biochemical instrument, relates to particularly a kind of test tube plug and takes test tube easily.
Background technology
In microorganism, Bacteria Culture or do in the process of biochemical identification, need to use the test tube plug of teat glass and different size, unlike material.For example, in the operation of traditional actual experiment, according to the difference of experimental subjects and object, need to use cotton plug, silica gel plug, plastic plug or with the stopper of core.Because culture of bacteria and microorganism all can cause stopper used certain pollution to cause these stopper utilization rates lower; and the stopper of general use is all directly to clog test tube without any diaphragm; the serviceability ratio of stopper is also reduced greatly, and even a lot of stoppers are all disposable utilization rates.Meanwhile, the exposed part of stopper, due to contaminated, usually have impurity and is attached on stopper during cleaning, may in the upper process of once using, affect experimental result.In addition, in cultivation or biochemical identification process, need to carry out the technology such as multiple high temp sterilizing, cooling, turbine concussion, the meeting having after traditional stopper time in operating process is slightly long is expanded, some meetings are dwindled, getting stopper after having expanded can add to the difficulties, dwindled likely can allow bacterium or microorganism contaminated or in vitro liquid slop over, be all unfavorable for the experiment in later stage.Moreover, for some semifixed culture medium, preserve the method for bacterial strain, because will reach, make bacterium reduce reaction, reduce and evaporate, must avoid the rotten problem of culture medium simultaneously, the stopper that need to have gas permeability, traditional stopper, because need to clog test tube mouth, is conveniently taken simultaneously, need to be made into centrum, up big and down small, could meet above-mentioned condition, so make thicklyer, can have a greatly reduced quality in gas permeability aspect.
Utility model content
The purpose of this utility model is to provide a kind of test tube plug to take test tube easily, has not only facilitated test operation, has solved the shortcoming that test tube plug wears no resistance, utilization rate is low simultaneously, has widened the scope of application of test tube.
For achieving the above object, test tube plug of the present utility model is taken test tube easily and is comprised test tube body and test tube cap, and the material of described test tube cap and test tube body is glass, is specially adapted to microorganism, Bacteria Culture or does biochemical identification and use.The longitudinal section of described test tube cap is " T " character form structure, and wherein, the external diameter of described test tube cap upper end is greater than the external diameter of described test tube body, and the external diameter of described test tube cap lower end matches with the internal diameter of test tube body; The center of described test tube cap is provided with test tube plug through hole, is provided with the test tube plug matching with the size of described test tube plug through hole in described test tube plug through hole; The rear surface of described test tube cap is provided with external screw thread, described test tube body upper end is provided with the internal thread matching with the external screw thread of test tube cap lower end, described test tube cap and test tube body are threaded, so, after test tube cap is tightened by the threaded engagement of its surperficial screw thread and test tube body, the upper end of test tube cap protrudes from the upper end of test tube body, thereby convenient by the screw-in of test tube cap and back-out operation.
Preferably, the height of described test tube cap upper end is 0.3～1cm, and the external diameter of described test tube cap upper end is greater than the external diameter 0.2～0.5cm of described test tube body.
As preferably, the height of described test tube cap lower end is 2～3cm.
In order to increase the sealing of test tube plug, described test tube plug through hole is cylindrical hole wide at the top and narrow at the bottom, and wherein, the aspect ratio of test tube plug through hole top and bottom is 6:1～8:1.
Experimental different needs, described test tube plug is any one in silica gel plug, rubber stopper, core plug, cotton plug or plastic plug.
In addition, the thickness of test tube cap can be selected its thickness as required, and preferably, the thickness of test tube cap is 0.2～0.5cm.The gas permeability that can regulate test tube by changing the thickness of test tube cap, test tube cap is thinner, and gas permeability is better.
Beneficial effect: compared with prior art, test tube plug of the present utility model is taken test tube easily and is covered by increasing a teat glass being threaded with test tube body, can avoid traditional direct phenomenon that test tube plug is clogged to the expansion or the shrinkage that produce test tube plug under various high temperature or low temperature condition that cause in test tube body, having prevented that expansion due to test tube plug is bad takes off or cooling dwindling causes having space to pollute bacterium or the microorganism cultivated between test tube plug and test tube body, simultaneously, can be according to culture of bacteria, the requirement of microorganism or the experiment of various biochemical identification is different, make respectively the test tube stopper of unlike material.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of test tube cap of the present utility model;
Fig. 2 is the schematic diagram of test tube plug of the present utility model;
Fig. 3 is the schematic diagram that test tube cap of the present utility model, test tube plug and test tube body are used in conjunction with.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
As shown in Figure 3, a kind of test tube plug is taken test tube easily, comprise teat glass body 1 and teat glass lid 2, teat glass body 1 length is 15cm, internal diameter 2cm, thickness is 2.5mm, teat glass lid 2 as shown in Figure 1, the total height of teat glass lid 2 is 3.5cm, the external diameter that longitudinal section is " T " character form structure test tube cap 2 upper ends is 3cm, be highly 0.5cm, the external diameter that teat glass covers 2 lower ends is 2cm, be highly 2.5cm, the center of teat glass lid 2 is provided with test tube plug through hole 4, test tube plug through hole 4 is structure wide at the top and narrow at the bottom, the diameter of test tube plug through hole 4 upper ends is 1.6cm, be highly 3cm, the diameter of test tube plug through hole 4 lower ends is 1.2cm, be highly 0.5cm.In test tube plug through hole 4, being provided with the test tube plug 5 matching with the size of test tube plug through hole 4 (is that upper end height is 3cm, diameter is 1.6cm, lower end is 0.5cm, diameter is 1.2cm, as shown in Figure 2), the surface of the lower end of test tube cap 2 is provided with external screw thread 3, and test tube body 1 upper end is provided with the internal thread matching with the external screw thread 3 of test tube cap 2 lower ends, and test tube cap 2 and test tube body 1 are threaded.
In use, as required, select the material kind of test tube plug 5, as any one in silica gel plug, rubber stopper, core plug, cotton plug or plastic plug.Teat glass lid 2 is screwed in test tube body 1, then test tube plug 5 is inserted in test tube plug through hole 4, utilize test tube plug through hole 4 structure wide at the top and narrow at the bottom that test tube plug 5 is inserted wherein tightly.When needs are opened test tube, as long as teat glass lid 2 is screwed out, even through high-temperature operation, test tube plug 5 can bump, but because the deformation of glass is little, still can easily teat glass lid be screwed out.By test tube plug 5 is designed to structure wide at the top and narrow at the bottom, also further to have avoided because temperature reduces, test tube plug 5 shrinks the defect that causes solution to reveal or introduce impurity, because width large test tube plug 5 in upper strata still can shelter from the small through hole of lower end.When needs are changed test tube plug or are cleaned test tube plug, only need to test tube plug be ejected from test tube cap bottom, very convenient.
Claims (5)
1. a test tube plug is taken test tube easily, comprise test tube body (1) and test tube cap (2), it is characterized in that, described test tube cap (2) is glass with the material of test tube body (1), the longitudinal section of described test tube cap (2) is " T " character form structure, wherein, the external diameter of described test tube cap (2) upper end is greater than the external diameter of described test tube body (1), and the external diameter of described test tube cap (2) lower end matches with the internal diameter of test tube body (1); The center of described test tube cap (2) is provided with test tube plug through hole (4), is provided with the test tube plug (5) matching with the size of described test tube plug through hole (4) in described test tube plug through hole (4); The rear surface of described test tube cap (2) is provided with external screw thread (3), described test tube body (1) upper end is provided with the internal thread matching with the external screw thread (3) of test tube cap (2) lower end, and described test tube cap (2) and test tube body (1) are threaded.
2. test tube plug according to claim 1 is taken test tube easily, it is characterized in that, the height of described test tube cap (2) upper end is 0.3～1cm, and the external diameter of described test tube cap (2) upper end is greater than the external diameter 0.2～0.5cm of described test tube body (1).
3. test tube plug according to claim 1 is taken test tube easily, it is characterized in that, the height of described test tube cap (2) lower end is 2～3cm.
4. test tube plug according to claim 1 is taken test tube easily, it is characterized in that, described test tube plug through hole (4) is cylindrical hole wide at the top and narrow at the bottom, and wherein, the aspect ratio of described test tube plug through hole (4) top and bottom is 6:1～8:1.
5. according to the test tube plug described in claim 1～4 any one, take test tube easily, it is characterized in that, described test tube plug (5) is any one in silica gel plug, rubber stopper, core plug, cotton plug or plastic plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420389119.8U CN203990689U (en) | 2014-07-15 | 2014-07-15 | A kind of test tube plug is taken test tube easily |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420389119.8U CN203990689U (en) | 2014-07-15 | 2014-07-15 | A kind of test tube plug is taken test tube easily |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203990689U true CN203990689U (en) | 2014-12-10 |
Family
ID=52030760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420389119.8U Expired - Fee Related CN203990689U (en) | 2014-07-15 | 2014-07-15 | A kind of test tube plug is taken test tube easily |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203990689U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106520533A (en) * | 2016-11-23 | 2017-03-22 | 镇江日泰生物工程设备有限公司 | Test tube with conveniently removed test tube plug |
| CN106732229A (en) * | 2016-12-03 | 2017-05-31 | 河南工程学院 | Spherical Solid-phase Polypeptide reaction bulb |
| CN108554469A (en) * | 2018-04-18 | 2018-09-21 | 彭善永 | A kind of Multifunctional test tube device of pharmaceutical experiment |
-
2014
- 2014-07-15 CN CN201420389119.8U patent/CN203990689U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106520533A (en) * | 2016-11-23 | 2017-03-22 | 镇江日泰生物工程设备有限公司 | Test tube with conveniently removed test tube plug |
| CN106732229A (en) * | 2016-12-03 | 2017-05-31 | 河南工程学院 | Spherical Solid-phase Polypeptide reaction bulb |
| CN106732229B (en) * | 2016-12-03 | 2019-03-29 | 河南工程学院 | Spherical Solid-phase Polypeptide reaction flask |
| CN108554469A (en) * | 2018-04-18 | 2018-09-21 | 彭善永 | A kind of Multifunctional test tube device of pharmaceutical experiment |
| CN108554469B (en) * | 2018-04-18 | 2020-06-30 | 中南大学湘雅医院 | Multifunctional test tube device for medicine experiments |
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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: 20141210 Termination date: 20160715 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |