CN202939873U - Magdeburg hemisphere for physical experiment - Google Patents
Magdeburg hemisphere for physical experiment Download PDFInfo
- Publication number
- CN202939873U CN202939873U CN 201220663889 CN201220663889U CN202939873U CN 202939873 U CN202939873 U CN 202939873U CN 201220663889 CN201220663889 CN 201220663889 CN 201220663889 U CN201220663889 U CN 201220663889U CN 202939873 U CN202939873 U CN 202939873U
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- Prior art keywords
- hemisphere
- piston
- hemispheres
- physical experiment
- magdeburg
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- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
The utility model provides a Magdeburg hemisphere for physical experiment, comprising two hemispheres and a sealing ring, wherein the two hemispheres are internally provided with mutually-communicated cavities, exhaust pipes connected with the cavities are arranged on the two hemispheres respectively, a control valve is arranged on each of the exhaust pipe, the outer side wall of one hemisphere is connected with a pull ring through a fixed block, the other hemisphere is connected with a pull ring through a piston, the front end of the piston is arranged in the cavities, and the piston passes through the hemispheres and a rod part of the piston tightly contact the hemispheres. Compared with the prior art, the Magdeburg hemisphere for physical experiment has the characteristics of reasonable design, simple structure, convenient use and the like; and the Magdeburg hemisphere for physical experiment is convenient in negative pressure generation, easy to carry, high in success rate of air exhaust and capable of facilitating the experiment; and the Magdeburg hemisphere for physical experiment has good popularization and application values due to the easily-manufactured whole structure and low cost.
Description
Technical field
The utility model relates to a kind of experiment apparatus, specifically a kind of simple in structure, Physical Experiment Magdeburg hemispheres.
Background technology
The Magdeburg hemispheres experiment is an important experiment on the junior physics textbook, common way is incorporated in one with two hemisphere exactly and vacuumizes with vacuum pump, but traditional method often affects experiment effect because of the problem of bleeding, besides air pump is heavier, Portable belt not, and need proofed sleeve to be connected between air pump and hemisphere, its impermeability is bad, also can affect experiment effect, and general middle school is limited and can not be equipped with vacuum pump due to funds, therefore affect the carrying out of this experiment, much do not had middle school with good conditionsi often to talk about stratagems on paper.
Summary of the invention
Technical assignment of the present utility model is to solve the deficiencies in the prior art, and a kind of simple in structure, Physical Experiment Magdeburg hemispheres is provided.
The technical solution of the utility model realizes in the following manner, this a kind of Physical Experiment Magdeburg hemispheres, comprise two hemisphere, sealing ring, described two hemisphere inside are provided with the cavity of mutual perforation, be provided with the gas outlet that connects this cavity on two hemisphere, be provided with operation valve on described gas outlet, be connected with draw ring by fixed block on the lateral wall of one of them hemisphere, another hemisphere is connected with draw ring by piston, the front end of this piston is arranged in cavity, and piston passes hemisphere and its bar section and hemisphere close contact.
Described cavity is cylindrical cavity or rectangular parallelepiped cylinder chamber.
The beneficial effect that the utility model compared with prior art produces is:
A kind of Physical Experiment of the present utility model with Magdeburg hemispheres have simple in structure, easy to use, the characteristics such as be skillfully constructed, its negative pressure produces convenient, is easy to carry, and the success ratio of bleeding is high, be easy to experiment and carry out, thereby the utlity model has good popularizing value.
Description of drawings
Accompanying drawing 1 is structural representation of the present utility model.
Mark in accompanying drawing represents respectively:
1, hemisphere, 2, sealing ring, 3, gas outlet, 4, fixed block, 5, piston, 6, cavity, 7, draw ring, 8, operation valve.
Embodiment
Below in conjunction with accompanying drawing, a kind of Physical Experiment of the present utility model is described in detail below with Magdeburg hemispheres.
as shown in Figure 1, this a kind of Physical Experiment Magdeburg hemispheres, comprise two hemisphere 1, sealing ring 2, described two hemisphere 1 inside are provided with the cavity 6 of mutual perforation, be provided with the gas outlet 3 that connects this cavity 6 on two hemisphere 1, be provided with operation valve 8 on described gas outlet 3, be connected with draw ring 7 by fixed block 4 on the lateral wall of one of them hemisphere 1, this fixed block 4 is on same level with cavity 6, the corresponding position of another hemisphere 1 is connected with draw ring 7 by piston 5, described piston 5 is active to be arranged on hemisphere 1 and its leading section closely is arranged in cavity 6, piston 5 passes hemisphere 1 and its bar section and hemisphere 1 close contact.
Described cavity 6 is cylindrical cavity or rectangular parallelepiped cylinder chamber, and is corresponding, the rounded or rectangle of the leading section of piston 5.
As shown in Figure 1, left side gas outlet 3, operation valve 8 is used for experiment, and right side gas outlet 3, operation valve 8 are standby, to facilitate the open and close of hemisphere 1.
In the above-described embodiments, preferred forms of the present utility model is described, obviously, under inventive concept of the present utility model, still can make a lot of variations, for example the combination with gas outlet and operation valve makes retaining valve into, also can make a lot of variations, remodeling, interpolation or replacement in essential scope of the present utility model.At this, should illustrate, any change of making under inventive concept of the present utility model all will fall in protection domain of the present utility model.
Claims (2)
1. Physical Experiment Magdeburg hemispheres, comprise two hemisphere, sealing ring, it is characterized in that: described two hemisphere inside are provided with the cavity of mutual perforation, be provided with the gas outlet that connects this cavity on two hemisphere, be provided with operation valve on described gas outlet, be connected with draw ring by fixed block on the lateral wall of one of them hemisphere, another hemisphere is connected with draw ring by piston, the front end of this piston is arranged in cavity, and piston passes hemisphere and its bar section and hemisphere close contact.
2. a kind of Physical Experiment Magdeburg hemispheres according to claim 1, it is characterized in that: described cavity is cylindrical cavity or rectangular parallelepiped cylinder chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220663889 CN202939873U (en) | 2012-12-06 | 2012-12-06 | Magdeburg hemisphere for physical experiment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220663889 CN202939873U (en) | 2012-12-06 | 2012-12-06 | Magdeburg hemisphere for physical experiment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202939873U true CN202939873U (en) | 2013-05-15 |
Family
ID=48324100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220663889 Expired - Fee Related CN202939873U (en) | 2012-12-06 | 2012-12-06 | Magdeburg hemisphere for physical experiment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202939873U (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 |
-
2012
- 2012-12-06 CN CN 201220663889 patent/CN202939873U/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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130515 Termination date: 20131206 |