CN203733383U - Medium-removable transparent Magdeburg hemisphere - Google Patents
Medium-removable transparent Magdeburg hemisphere Download PDFInfo
- Publication number
- CN203733383U CN203733383U CN201420035222.2U CN201420035222U CN203733383U CN 203733383 U CN203733383 U CN 203733383U CN 201420035222 U CN201420035222 U CN 201420035222U CN 203733383 U CN203733383 U CN 203733383U
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- China
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- hemisphere
- magdeburg
- magdeburg hemispheres
- medium
- transparent
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Abstract
A medium-removable transparent Magdeburg hemisphere belongs to the physics teaching instrument technology field, and relates to an air pressure demonstration instrument. The medium-removable transparent Magdeburg hemisphere is composed of two hemisphere shells, two channels, two valves, and two handles; the two transparent hemisphere shells can be combined into a sphere; the top of each hemisphere is provided with a channel; the channel is respectively provided with a valve; and each hemisphere shell is provided with one handle. The medium-removable transparent Magdeburg hemisphere has the advantages of simple structure, easy operation, high vacuum degree, and vividness.
Description
Technical field
The utility model belongs to physics educational apparatus technical field, relates to the atmospheric instrument of a kind of demonstration.
Technical background
Existing Magdeburg hemispheres is in the time of demonstration atmospheric pressure, first to carry out bleeding in Magdeburg hemispheres, the air pump of general school is not useful, there will be the inadequate problem of vacuum tightness of bleeding, cause experiment effect not obvious, can improve although improve the performance of air pump the effect of bleeding, can not be evacuated.Application number is 201120553139.0, " improved demonstrator for Magdeburg hemispheres test ", in order to make vacuum in Magdeburg hemispheres, first in Magdeburg hemispheres, be filled with dry ammonia or dry hydrogen chloride gas, then carry out the complicated operating process such as water filling, be also difficult to ensure high vacuum tightness in card Magdeburg hemispheres.And these instruments all can not intuitively show the vacuum condition in Magdeburg hemispheres.
Goal of the invention
The purpose of this utility model is to provide one, can easily will in Magdeburg hemispheres, be pumped into condition of high vacuum degree by conversion medium, and intuitively shows the novel air pressure demonstration instrument for teaching of the vacuum condition in Magdeburg hemispheres.
Summary of the invention
The utility model is to realize like this, make Magdeburg hemispheres with transparent material, Magdeburg hemispheres to summit, respectively open a mouth, namely at the right opposite of the bleed-off passage of existing Magdeburg hemispheres, then open a passage, all load onto valve, in the time of valve open, Magdeburg hemispheres inner chamber communicates with outside, closes obstructed.
In the time will carrying out Magdeburg hemispheres teaching demonstration, first Magdeburg hemispheres is vertically placed, two passages are on vertical curve, then by two valve opens, in from next passage to Magdeburg hemispheres, inject colored liquid, in the time that liquid is expired at leisure, the air in Magdeburg hemispheres has also just been discharged from leisure; In the time that liquid flows out from a upper passway, also just can see that Magdeburg hemispheres the inside has not had air, at this moment, first closes last valve, in next passway, liquid is extracted out, at this moment can see that the liquid in Magdeburg hemispheres constantly declines, liquid top just forms vacuum, after we extract liquid out, closes next valve, in Magdeburg hemispheres, just form vacuum, the handle that at this time draws again Magdeburg hemispheres, Magdeburg hemispheres just can not draw away, and has shown atmospheric existence.
The utlity model has that simple in structure, processing ease, vacuum tightness are high, advantage intuitively.
Brief description of the drawings
Fig. 1 is principle schematic of the present utility model
(1) be that Magdeburg hemispheres, (2) are that passage first, (3) are for valve first, (4) are for passage second, (5) are for valve second, (6) (7) are for shaking hands.
Embodiment
Make Magdeburg hemispheres (1) with transparent material as shown in Figure 1, on the summit of two hemisphere, respectively open a passage (2) and (4), all load onto valve (3) and (5), in the time of valve open, Magdeburg hemispheres inner chamber communicates with outside, closes obstructed.
In the time will carrying out Magdeburg hemispheres teaching demonstration, first Magdeburg hemispheres is vertically placed, be that the line of A, A ' is on a vertical curve, then two valves (3), (5) are opened, in from lower channel first (2) to Magdeburg hemispheres (1), inject colored liquid, in the time that liquid is expired at leisure, the air in Magdeburg hemispheres has also just been discharged from from passage second (4) at leisure; In the time that liquid flows out from a upper passage second (4) mouthful, can see that Magdeburg hemispheres (1) the inside is full of liquid, there is no air, at this moment, first close and close valve second (5), extract liquid out in lower channel first (2) mouthful, at this moment can see that the liquid in Magdeburg hemispheres (1) constantly declines under the effect of gravity, liquid top just forms vacuum; When we Magdeburg hemispheres in liquid extract out after close lower valve first (3), Magdeburg hemispheres just forms vacuum in (1), at this moment draw again handle (6), (7) of Magdeburg hemispheres, Magdeburg hemispheres just can not draw away, and has shown atmospheric existence.
The utility model replaces with liquid medium the gas medium in Magdeburg hemispheres, then vacuumizes, and its meeting is easier than the body of directly bleeding, and vacuum tightness also can be better.Certainly the utility model also can, by any one valve closing, directly be bled by another one passage, the same with traditional Magdeburg hemispheres.
The utility model and existing Magdeburg hemispheres comparison, just many passages and valve, so have, simple in structure, processing ease, vacuum tightness are high, advantage intuitively.
Claims (1)
1. one kind by two Loadings On Hemispherical Shells, two passages, two valves, two transparent Magdeburg hemispheres of replaceable medium that handle forms, it is characterized in that two transparent Loadings On Hemispherical Shells can be combined into a spheroid, all be provided with a passage on each hemispheroidal summit, a valve is respectively housed on passage, and each Loadings On Hemispherical Shell is respectively equipped with a handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420035222.2U CN203733383U (en) | 2014-01-08 | 2014-01-08 | Medium-removable transparent Magdeburg hemisphere |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420035222.2U CN203733383U (en) | 2014-01-08 | 2014-01-08 | Medium-removable transparent Magdeburg hemisphere |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203733383U true CN203733383U (en) | 2014-07-23 |
Family
ID=51203436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420035222.2U Expired - Fee Related CN203733383U (en) | 2014-01-08 | 2014-01-08 | Medium-removable transparent Magdeburg hemisphere |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203733383U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103761912A (en) * | 2014-01-08 | 2014-04-30 | 纪任春 | Transparent Magdeburg hemispheres with replaceable medium |
-
2014
- 2014-01-08 CN CN201420035222.2U patent/CN203733383U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103761912A (en) * | 2014-01-08 | 2014-04-30 | 纪任春 | Transparent Magdeburg hemispheres with replaceable medium |
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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: 20140723 Termination date: 20150108 |
|
| EXPY | Termination of patent right or utility model |