CN203179353U - Atmospheric pressure experiment demonstration instrument - Google Patents
Atmospheric pressure experiment demonstration instrument Download PDFInfo
- Publication number
- CN203179353U CN203179353U CN 201320186065 CN201320186065U CN203179353U CN 203179353 U CN203179353 U CN 203179353U CN 201320186065 CN201320186065 CN 201320186065 CN 201320186065 U CN201320186065 U CN 201320186065U CN 203179353 U CN203179353 U CN 203179353U
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- CN
- China
- Prior art keywords
- atmospheric pressure
- water barrel
- nozzle
- steel ladle
- water
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model discloses an atmospheric pressure experiment demonstration instrument, which comprises an inverted-tower-shaped water barrel. The diameter of the upper part of the water barrel is greater than that of the middle part of the water barrel. The diameter of the middle part of the water barrel is greater than that of the lower part of the water barrel. The top opening of water barrel is provided with a sealing cover which is provided with a water inlet. A sealing plug is positioned on the water inlet. A suction nozzle with a switch is arranged on the upper part of the water barrel. An upper nozzle and a lower nozzle are respectively arranged on the middle part and the lower part of the water barrel. By utilizing the inverted-tower-shaped water barrel, the existence of the atmospheric pressure can be demonstrated, and the relation between liquid pressure and liquid depth can be also demonstrated. The atmospheric pressure experiment demonstration instrument can express phenomenon directly, vividly and interestingly.
Description
Technical field
The utility model relates to a kind of teaching and experiment equipment, relates in particular to a kind of experimental apparatus of demonstrating atmospheric pressure.
Background technology
The experiment that the checking atmospheric pressure exists is the important experiment in the junior physics, carries out this experiment to exciting student's learning interest, cultivates student's initiative, makes physics lesson lively, vivid, directly perceived, interesting significant.In atmospheric pressure one joint teaching, the teacher usually adopts " inflammatory blepharoedema experiment " to demonstrate atmospheric existence, and simple equipment and unexpected experimental result can attract the notice of students really, excite the learning interest of students.Find when utilizing this experiment to carry out teaching demonstration, and be not easy to make this experiment, atmospheric pressure seems " very little " when doing this experiment, disturbs a little to some extent, and the scraps of paper have just fallen.
Summary of the invention
The purpose of this utility model provides a kind of visual in image, the atmospheric pressure experimental demonstration instrument of vivid and interesting.
The purpose of this utility model is achieved through the following technical solutions, this atmospheric pressure experimental demonstration instrument comprises steel ladle of pyramidal structure, be that steel ladle is divided into epimere, stage casing and hypomere, the diameter of steel ladle epimere is greater than the stage casing, the diameter in stage casing is again greater than hypomere, the gland bonnet that is provided with suitable for reading of described steel ladle, described gland bonnet is provided with water inlet, described water inlet is provided with sealing-plug, described epimere one side is provided with the admission piece of belt switch, and a side of described stage casing and hypomere is respectively equipped with top nozzle and the following nozzle of belt switch.
During the demonstration atmospheric pressure, close admission piece, top nozzle and following nozzle on the steel ladle respectively, in steel ladle, fill with water by water inlet then, with sealing-plug water inlet is clogged after filling with water, at this moment, open top nozzle and following nozzle, water in the steel ladle does not spray in top nozzle and following nozzle, when opening admission piece, the water ejection is arranged in top nozzle and the following nozzle, illustrating that gas enters from admission piece produces pressure in the steel ladle, impel the water in the steel ladle to spray in nozzle.Simultaneously, can also clearly see from the water column far firing range of down nozzle ejection and to come the relation of qualitative demonstration liquid pressure and the degree of depth by the size of water spray range greater than the range from the water column of top nozzle ejection.
The beneficial effects of the utility model: by a steel ladle that falls pyramidal structure, can demonstrate out the existence of atmospheric pressure easily, and drill the relation that shows liquid pressure and the degree of depth simultaneously.Has visual pattern, the advantage of vivid and interesting.
Description of drawings
Describe embodiment of the present utility model in detail below in conjunction with accompanying drawing
Fig. 1 is synoptic diagram of the present utility model
Among the figure: 1, steel ladle 2, epimere 3, stage casing 4, hypomere 5, water inlet 6, sealing-plug 7, admission piece 8, top nozzle 9, mouth spray down
Embodiment
As shown in Figure 1, this atmospheric pressure experimental demonstration instrument comprises steel ladle 1 of pyramidal structure, steel ladle is divided into epimere 2, stage casing 3 and hypomere 4, the diameter of steel ladle epimere 2 is greater than stage casing 3, and the diameter in stage casing 3 is again greater than hypomere 4, the gland bonnet that is provided with suitable for reading of steel ladle, gland bonnet is provided with water inlet 5, water inlet 5 is provided with sealing-plug 6, and epimere 2 one sides are provided with the admission piece 7 of belt switch, and a side of stage casing 3 and hypomere 4 is respectively equipped with top nozzle 8 and the following nozzle 9 of belt switch.During the demonstration atmospheric pressure, close admission piece 7, top nozzle 8 and following nozzle 9 on the steel ladle 1 respectively, in steel ladle 1, fill with water by water inlet 5 then, with sealing-plug 6 water inlet 5 is clogged after filling with water, at this moment, open top nozzle 8 and following nozzle 9, water in the steel ladle 1 does not spray in top nozzle 8 and following nozzle 9, when opening admission piece 7, the water ejection is arranged in top nozzle 8 and the following nozzle 9, illustrate that gas enters generation pressure in the steel ladle 1 from admission piece 7, impels the water in the steel ladle 1 to spray in nozzle.Simultaneously, can also clearly see from the water column far firing range of down nozzle 9 ejections and to come the relation of qualitative demonstration liquid pressure and the degree of depth by the size of water spray range greater than the range from the water column of top nozzle 8 ejections.
Claims (1)
1. atmospheric pressure experimental demonstration instrument, it is characterized in that this demonstrator comprises steel ladle of pyramidal structure, the diameter of steel ladle epimere is greater than the stage casing, the diameter in stage casing is again greater than hypomere, the gland bonnet that is provided with suitable for reading of described steel ladle, described gland bonnet is provided with water inlet, and described water inlet is provided with sealing-plug, described epimere one side is provided with the admission piece of belt switch, and a side of described stage casing and hypomere is respectively equipped with top nozzle and the following nozzle of belt switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320186065 CN203179353U (en) | 2013-03-22 | 2013-03-22 | Atmospheric pressure experiment demonstration instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320186065 CN203179353U (en) | 2013-03-22 | 2013-03-22 | Atmospheric pressure experiment demonstration instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203179353U true CN203179353U (en) | 2013-09-04 |
Family
ID=49076022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320186065 Expired - Fee Related CN203179353U (en) | 2013-03-22 | 2013-03-22 | Atmospheric pressure experiment demonstration instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203179353U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112802383A (en) * | 2019-11-14 | 2021-05-14 | 张可欣 | Bottle capable of not sucking water-atmospheric pressure demonstration experimental device |
-
2013
- 2013-03-22 CN CN 201320186065 patent/CN203179353U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112802383A (en) * | 2019-11-14 | 2021-05-14 | 张可欣 | Bottle capable of not sucking water-atmospheric pressure demonstration experimental device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130904 Termination date: 20140322 |