CN204596272U - Atmospheric pressure experimental provision - Google Patents
Atmospheric pressure experimental provision Download PDFInfo
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- CN204596272U CN204596272U CN201520171064.8U CN201520171064U CN204596272U CN 204596272 U CN204596272 U CN 204596272U CN 201520171064 U CN201520171064 U CN 201520171064U CN 204596272 U CN204596272 U CN 204596272U
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- panel
- transparent pipe
- transparent
- plug
- syringe
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Abstract
A kind of atmospheric pressure experimental provision, is characterized in that: it includes transparent vessel and the syringe that upper opening can fill liquid; Place the panel of strip in described transparent vessel vertically, be fixed with balancing weight bottom described panel, on described panel, radial direction is fixed with long straight transparent pipe, and the top of described transparent pipe is connected with the capsule stretched out outside panel, and the bottom of described transparent pipe is openend; The oral area of described transparent vessel is plugged with plug, is plugged with the syringe needle piercing through plug in described plug, and described syringe needle is connected with syringe body by sebific duct.Transparent pipe is placed in transparent vessel, replaces transparent pipe " outside atmospheric pressure " with the air pressure in transparent vessel, simulate the change of external atmosphere pressure simply and easily.Elongated face plate is equipped with long straight transparent pipe and also loads onto dyeing water, and visibility is good, and phenomenon is obviously convenient to observe, and has the outstanding advantages that structure is simple, cost is low, easy to operate.
Description
Technical field
The utility model relates to a kind of physics teaching in secondary school instrument, particularly atmospheric pressure experimental provision.
Background technology
In existing physics teaching, require the Related Phenomena in students' union's atmospheric pressure knowledge interpretation life, such as, with mouth how to be passed in and out by gas in the process analysis procedure analysis of suction pipe sucking material from bottle, human body respiration process, why water pumper can be extracted into eminence, the principle of work of liquid barometers, the principle of work of sucker, the principle of work of chicken self-waterer, evangelista torricelli experiment water from lower.Explain such phenomenon, will set about from three links, one is the size variation of analytical equipment air pressure inside and how acts on, two be analyze external atmosphere pressure size and how to act on, three is the inside and outside atmospheric sizes of contrast, show that who plays a leading role, thus analyzes phenomenon according to specific situation.
Due in the prior art, research atmospheric pressure experimental provision is a lot, but its common ground is, can the gas pressure intensity of modifier inside, observe internal pressure and change the experimental phenomena caused, and then help student has grasped the first above-mentioned link preferably.Such as, but just feel to imagine on " impact of external atmosphere pressure change on phenomenon " in second link, many students think that beverage is gone by mouth " suction " inspiration, and indigestion atmospheric pressure can be compressed into beverage in the mouth.The reason causing above-mentioned second link thinking to hinder lacks the experimental provision that one " can change external atmosphere pressure size ", is unfavorable for the thinking guiding beginner.
Utility model content
For solving the problems referred to above that prior art exists, the utility model provides a kind of atmospheric pressure experimental provision, can simulate the change of external atmosphere pressure, observes the phenomenon caused by this change, thus helps to understand atmospheric effect.
The technical scheme that the utility model adopts is: a kind of atmospheric pressure experimental provision, is characterized in that: it includes transparent vessel and the syringe that upper opening can fill liquid; Place the panel of strip in described transparent vessel vertically, be fixed with balancing weight bottom described panel, on described panel, radial direction is fixed with long straight transparent pipe, and the top of described transparent pipe is connected with the capsule stretched out outside panel, and the bottom of described transparent pipe is openend; The oral area of described transparent vessel is plugged with plug, is plugged with the syringe needle piercing through plug in described plug, and described syringe needle is connected with syringe body by sebific duct.
Described panel is marked with the scale mark of indicated altitude and numeral.
Using method is:
1, enter the water of appropriate dyeing at container content, put into panel, balancing weight and long straight transparent pipe.By instruments such as clips, the capsule at appropriateness extruding transparent pipe top, discharge section air, makes the dyeing water in container enter certain altitude place in transparent pipe, as half or 2/3rds places; In the sealing of container finish grafting plug, by the needle pierces plug of syringe, syringe is communicated with internal tank.
2, pressure injection emitter is pushed inward, container is inflated, increase gas in container pressure, namely increase the air pressure of transparent pipe outside, can be observed dyeing water in transparent pipe constantly rising, illustrate when transparent pipe " outside air pressure " increase to be greater than transparent pipe " inner air pressure " time, the hydraulic pressure of bottom just can enter in transparent pipe by " outside air pressure ".
3, syringe is pulled outwardly, container is bled, reduce gas in container pressure, namely reduce the air pressure of transparent pipe outside, can be observed dyeing water in transparent pipe constantly declining, illustrate when transparent pipe " outside air pressure " be reduced to be less than transparent pipe " inner air pressure " time, the hydraulic pressure in pipe just can go out by the air pressure that transparent pipe " inside " is larger.
The beneficial effects of the utility model are: be placed on by transparent pipe in transparent vessel, transparent pipe " outside atmospheric pressure " is replaced with the air pressure in transparent vessel, simulate the phenomenon caused by external atmosphere pressure change simply and easily, strengthen perceptual knowledge, help the atmospheric effect of student's profound understanding, recognize physical interesting useful, promote student's liking science.Elongated face plate is equipped with long straight transparent pipe and also loads onto dyeing water, and visibility is good, and phenomenon is obviously convenient to observe, and has the outstanding advantages that structure is simple, cost is low, easy to operate.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
In figure: 1 syringe body, 2 transfusion sebific ducts, the water of 3 dyeing, 4 balancing weights, 5 transparent vessels, 6 panels, 7 transparent pipes, 8 capsules, 9 plugs, 10 syringe needles.
Embodiment
As shown in Figure 1, transparent vessel 5 is built with the water 3 of dyeing, and place the panel 6 of strip in transparent vessel 5 vertically, for making panel erect, the bottom of panel 6 is fixed with balancing weight 4.Panel 6 is radially fixed with transparent pipe 7, and the top of transparent pipe 7 is connected with the capsule 8 stretched out outside panel 6, and the bottom of transparent pipe 7 is openend, and namely transparent pipe 7 and capsule 8 constitute king-size " glue head dropper ".
As shown in Figure 1, for making the eustasy of liquid level in transparent pipe 7 more obviously visible, transparent pipe 7 should have longer length, meanwhile, panel 6 also should add the scale mark of indicated altitude and numeral.
As shown in Figure 1, the oral area of transparent vessel 5 is plugged with plug 9, and the thickness of plug 9 should be less than the length of syringe needle 10, makes syringe needle 10 can pierce through plug 9 and communicates with the inside of transparent vessel 5.Syringe needle 10 is connected with syringe body 1 by sebific duct (as woven hose).Push-and-pull syringe, can change the air pressure of transparent vessel 5 inside, transparent pipe 7 outside fast, thus simulate the change of external atmosphere pressure well.
Claims (2)
1. an atmospheric pressure experimental provision, is characterized in that: it includes transparent vessel and the syringe that upper opening can fill liquid; Place the panel of strip in described transparent vessel vertically, be fixed with balancing weight bottom described panel, on described panel, radial direction is fixed with long straight transparent pipe, and the top of described transparent pipe is connected with the capsule stretched out outside panel, and the bottom of described transparent pipe is openend; The oral area of described transparent vessel is plugged with plug, is plugged with the syringe needle piercing through plug in described plug, and described syringe needle is connected with syringe body by sebific duct.
2. atmospheric pressure experimental provision as claimed in claim 1, is characterized in that: described panel is marked with the scale mark of indicated altitude and numeral.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520171064.8U CN204596272U (en) | 2015-03-25 | 2015-03-25 | Atmospheric pressure experimental provision |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520171064.8U CN204596272U (en) | 2015-03-25 | 2015-03-25 | Atmospheric pressure experimental provision |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204596272U true CN204596272U (en) | 2015-08-26 |
Family
ID=53932402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520171064.8U Expired - Fee Related CN204596272U (en) | 2015-03-25 | 2015-03-25 | Atmospheric pressure experimental provision |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204596272U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108303156A (en) * | 2018-02-22 | 2018-07-20 | 山东省医疗器械产品质量检验中心 | The venous samples collection container tester of arbitrary atmospheric pressure environments can be simulated |
| CN109377839A (en) * | 2018-12-11 | 2019-02-22 | 阆中市河溪镇小学校 | Teaching presses demonstrating experiment device with multifunction atmospheric |
| CN110176169A (en) * | 2019-07-13 | 2019-08-27 | 沈向安 | A kind of new gas law experiment instrument |
-
2015
- 2015-03-25 CN CN201520171064.8U patent/CN204596272U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108303156A (en) * | 2018-02-22 | 2018-07-20 | 山东省医疗器械产品质量检验中心 | The venous samples collection container tester of arbitrary atmospheric pressure environments can be simulated |
| CN109377839A (en) * | 2018-12-11 | 2019-02-22 | 阆中市河溪镇小学校 | Teaching presses demonstrating experiment device with multifunction atmospheric |
| CN110176169A (en) * | 2019-07-13 | 2019-08-27 | 沈向安 | A kind of new gas law experiment instrument |
| CN110176169B (en) * | 2019-07-13 | 2024-02-06 | 沈向安 | Gas law experiment instrument |
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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: 20150826 Termination date: 20160325 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |