CN203882483U - Biology teaching osmosis contrast demonstration device - Google Patents
Biology teaching osmosis contrast demonstration device Download PDFInfo
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- CN203882483U CN203882483U CN201420317795.4U CN201420317795U CN203882483U CN 203882483 U CN203882483 U CN 203882483U CN 201420317795 U CN201420317795 U CN 201420317795U CN 203882483 U CN203882483 U CN 203882483U
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- graduated cylinder
- measuring cylinder
- communicating pipe
- osmosis
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Abstract
The utility model relates to a biology teaching osmosis contrast demonstration device. The device comprises a base, a first scale marked measuring cylinder and a second scale marked measuring cylinder. The first measuring cylinder is filled with clear water, and the second measuring cylinder is filled with cane sugar solution. One side of the first measuring cylinder is provided with a water outlet, and one side of the bottom part of the second measuring cylinder extends to form a first connection pipe that is connected to the water outlet. The first connection pipe is equipped with a penetration membrane and a control valve. The device further comprises a third measuring cylinder and a fourth measuring cylinder. The third measuring cylinder is filled with clear water, and the fourth measuring cylinder is filled with cane sugar solution. The third measuring cylinder is communicated to the first measuring cylinder through a second connection pipe. The fourth measuring cylinder is communicated to the second measuring cylinder through a third connection pipe. The second connection pipe and the third connection pipe are provided with permeable membranes and control valves. The base is provided with a support. The fourth measuring cylinder is disposed on the support and the third measuring cylinder is disposed on the base. The biology teaching osmosis contrast demonstration device is simple in structure, convenient in operation, and conveniently carries out contrast experiments to demonstrate and verify osmosis.
Description
technical field
The utility model relates to bioconversion medium utility appliance technical field, specifically relates to a kind of Biology Teaching effect contrast apparatus for demonstrating.
Background technology
The solution that osmosis refers to two kinds of variable concentrations is every with semi-permeable diaphragm (allowing solvent molecule to pass through, the film that does not allow solute molecule to pass through), and hydrone or other solvent molecule enter the phenomenon highly concentrated solution from the solution of low concentration by semi-permeable diaphragm.
In the time carrying out bio-osmosis pilot demonstration, usual way is to get a long neck funnel, bell mouth place is put to semi-permeable diaphragm and funnel is put upside down, in funnel, pour concentration into and be 30% sucrose solution, putting it in the beaker of filling clear water again, make the interior liquid level of funnel identical with clear water, there is concentration difference in semi-permeable diaphragm upper and lower sides liquid, clear water can, to the high side infiltration of concentration, be observed liquid level lifting height in funnel thus.These install little only bad carrying, and when pilot demonstration, inconvenient operation, observing effect is not obvious.
In the prior art, Chinese utility model patent CN 203288129 provides " a kind of bioconversion medium permeability test teaching aid ", can show that by its technical scheme two kinds of solution that concentration is different are every with semi-permeable diaphragm, hydrone permeates to high concentration from low concentration, but want phase scientific validation osmosis principle, also need to draw by experiment that same concentration solution, when with semi-permeable diaphragm, phenomenon of osmosis can not occur, but present technical scheme equal Shortcomings in this contrast experiment.
Utility model content
Technical problem to be solved in the utility model be to provide a kind of simple in structure, easy to operate, be convenient to carry out contrast experiment with demonstration and verify chemosmotic Biology Teaching effect contrast apparatus for demonstrating.
For solving the problems of the technologies described above, the utility model provides following technical scheme:
A kind of Biology Teaching effect contrast apparatus for demonstrating, comprise base, with the graduated cylinder one of scale mark and with the graduated cylinder two of scale mark, graduated cylinder one is arranged at and on base and in it, is injected with clear water, in graduated cylinder two, be injected with sucrose solution, graduated cylinder one by one side is provided with effluent pipe mouth, and graduated cylinder two bottom one sides are extended with communicating pipe one, and communicating pipe one is connected in effluent pipe mouth, in communicating pipe one, be provided with permeable membrane, in described communicating pipe one, be also provided with operation valve; Also include graduated cylinder three and graduated cylinder four, in graduated cylinder three, be injected with clear water, in graduated cylinder four, be injected with sucrose solution; Described graduated cylinder three by there being communicating pipe two to be interconnected, is provided with permeable membrane and operation valve with graduated cylinder one in communicating pipe two; Described graduated cylinder four by there being communicating pipe three to be interconnected, is provided with permeable membrane and operation valve with graduated cylinder two in communicating pipe three; On described base, be provided with brace table, graduated cylinder four is placed on brace table, and graduated cylinder three is placed on base.
On such scheme basis, preferably, described base end face is provided with the universal wheel of locking device.
On such scheme basis, preferably, on described base, be also provided with air-bubble level.
The beneficial effect that the utility model compared with prior art has is: wherein, graduated cylinder one and graduated cylinder three all inject the co-altitude clear water of same concentration, between the two and by being connected the communicating pipe two with permeable membrane and operation valve, be convenient to verify by experiment that phenomenon of osmosis can not occur same concentration solution; Wherein, graduated cylinder four and graduated cylinder two all inject the level sucrose solution of same concentration, between the two and by being connected the communicating pipe three with permeable membrane and operation valve, being convenient to by experiment further checking, with concentration solution, phenomenon of osmosis can not occurring; Wherein, between graduated cylinder one and graduated cylinder two, be connected by the communicating pipe one with permeable membrane and operation valve, be convenient to illustrate by experiment that low concentration solution can be to highly concentrated solution generation phenomenon of osmosis, this phenomenon and above two phenomenons are contrasted, can be scientifically for demonstration and checking osmosis, experiment and good demonstration effect, be convenient to improve the quality of teaching.
Brief description of the drawings
Fig. 1 is the utility model structural representation;
Number in the figure is: 1-graduated cylinder one, 2-graduated cylinder two, 3-graduated cylinder three, 4-graduated cylinder four, 5-communicating pipe one, 6-communicating pipe two, 7-communicating pipe three, 8-effluent pipe mouth, 9-permeable membrane, 10-operation valve, 11-base, 12-brace table, 13-universal wheel, 14-air-bubble level.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
In description of the present utility model, it will be appreciated that, term " longitudinally ", " laterally ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", orientation or the position relationship of instructions such as " outward " are based on orientation shown in the drawings or position relationship, it is only the utility model for convenience of description, instead of device or the element of instruction or hint indication must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as restriction of the present utility model.
Known with reference to Fig. 1, a kind of Biology Teaching effect contrast apparatus for demonstrating, comprise base 11, with the graduated cylinder 1 of scale mark and with the graduated cylinder 22 of scale mark, graduated cylinder 1 is arranged at and on base 11 and in it, is injected with clear water, in graduated cylinder 22, be injected with sucrose solution, graduated cylinder one 1 one sides are provided with effluent pipe mouth 8, graduated cylinder 22 bottom one sides are extended with communicating pipe 1, communicating pipe 1 is connected in effluent pipe mouth 8, in communicating pipe 1, be provided with permeable membrane 9, in described communicating pipe 1, be also provided with operation valve 10; Also include graduated cylinder 33 and graduated cylinder 44, in graduated cylinder 33, be injected with clear water, in graduated cylinder 44, be injected with sucrose solution; Described graduated cylinder 33 by there being communicating pipe 26 to be interconnected, is provided with permeable membrane 9 and operation valve 10 with graduated cylinder 1 in communicating pipe 26; Graduated cylinder 44 by there being communicating pipe 37 to be interconnected, is provided with permeable membrane 9 and operation valve 10 with graduated cylinder 22 in communicating pipe 37; On base 11, be provided with brace table 12, graduated cylinder 44 is placed on brace table 12, and graduated cylinder 33 is placed on base 11.
Shown in Fig. 1, base 11 bottom surfaces are provided with the universal wheel 13 of locking device, are convenient to carry out Mobile Teaching to improve the quality of teaching.On base 11, be also provided with air-bubble level 14, be convenient to integral experiment device levelness to carry out verification to improve experiment rigor and science.
Wherein, graduated cylinder 1 and graduated cylinder 32 all inject the co-altitude clear water of same concentration, between the two and by being connected with the communicating pipe 26 of permeable membrane 9 and operation valve 10, are convenient to verify by experiment that phenomenon of osmosis can not occur same concentration solution; Wherein, graduated cylinder 44 and graduated cylinder 22 all inject the level sucrose solution of same concentration, between the two and by being connected with the communicating pipe 37 of permeable membrane 9 and operation valve 10, being convenient to by experiment further checking, with concentration solution, phenomenon of osmosis can not occurring; Wherein, between graduated cylinder 1 and graduated cylinder 22 by being connected with the communicating pipe 1 of permeable membrane 9 and operation valve 10, be convenient to illustrate by experiment that low concentration solution can be to highly concentrated solution generation phenomenon of osmosis, this phenomenon and above two phenomenons are contrasted, can be scientifically for demonstration and checking osmosis, experiment and good demonstration effect, be convenient to improve the quality of teaching.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any amendments of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (3)
1. a Biology Teaching effect contrast apparatus for demonstrating, comprise base, with the graduated cylinder one of scale mark and with the graduated cylinder two of scale mark, described graduated cylinder one is arranged on described base, described graduated cylinder one by one side is provided with effluent pipe mouth, described graduated cylinder two bottom one sides are extended with communicating pipe one, described communicating pipe one is connected in described effluent pipe mouth, in described communicating pipe one, is provided with permeable membrane, it is characterized in that: in described communicating pipe one, be also provided with operation valve; Also comprise that, with the graduated cylinder three of scale mark and with the graduated cylinder four of scale mark, described graduated cylinder three by there being communicating pipe two to be interconnected, is provided with permeable membrane and operation valve in described communicating pipe two with graduated cylinder one; Described graduated cylinder four by there being communicating pipe three to be interconnected, is provided with permeable membrane and operation valve in described communicating pipe three with graduated cylinder two; On described base, be provided with brace table, described graduated cylinder four is placed on described brace table, and described graduated cylinder three is placed on base.
2. a kind of Biology Teaching effect contrast apparatus for demonstrating according to claim 1, is characterized in that: described base end face is provided with the universal wheel of locking device.
3. a kind of Biology Teaching effect contrast apparatus for demonstrating according to claim 1, is characterized in that: on described base, be provided with air-bubble level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420317795.4U CN203882483U (en) | 2014-06-15 | 2014-06-15 | Biology teaching osmosis contrast demonstration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420317795.4U CN203882483U (en) | 2014-06-15 | 2014-06-15 | Biology teaching osmosis contrast demonstration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203882483U true CN203882483U (en) | 2014-10-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420317795.4U Expired - Fee Related CN203882483U (en) | 2014-06-15 | 2014-06-15 | Biology teaching osmosis contrast demonstration device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203882483U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108452856A (en) * | 2018-04-23 | 2018-08-28 | 天津医学高等专科学校 | Test U-shaped permeability apparatus |
-
2014
- 2014-06-15 CN CN201420317795.4U patent/CN203882483U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108452856A (en) * | 2018-04-23 | 2018-08-28 | 天津医学高等专科学校 | Test U-shaped permeability apparatus |
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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: 20141015 Termination date: 20150615 |
|
| EXPY | Termination of patent right or utility model |