CN211181339U - A physics experiment vacuum bell for teaching - Google Patents
A physics experiment vacuum bell for teaching Download PDFInfo
- Publication number
- CN211181339U CN211181339U CN202020076598.3U CN202020076598U CN211181339U CN 211181339 U CN211181339 U CN 211181339U CN 202020076598 U CN202020076598 U CN 202020076598U CN 211181339 U CN211181339 U CN 211181339U
- Authority
- CN
- China
- Prior art keywords
- gas collecting
- collecting bottle
- teaching
- main part
- bottle main
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model discloses a physics experiment vacuum bell for teaching, including the gas collecting bottle main part, the inside of gas collecting bottle main part has hung bee calling organ, and the last series connection of bee calling organ installs emitting diode, installs the rubber seal in the gas collecting bottle main part, runs through on the rubber seal to have the exhaust tube, and extends to the inside of gas collecting bottle main part, and the outside one end of exhaust tube is connected with the rubber tube, and the one end of rubber tube is connected with the evacuation machine. The utility model relates to a physics experiment vacuum bell for teaching, the teaching problem of physics experiment device can effectively be solved to this equipment, and whole device is small and exquisite light, and the teacher of being convenient for demonstrates the operation on class adopts the gas collecting bottle to experiment and uses, cooperates corresponding sealing device, has excellent gas tightness, adopts the fine noise problem that solves the electronic air extractor and bring of evacuation machine, and the time spent is not enough 30S quick evacuation, and is more high-efficient laborsaving than the manual air exhaust of air extraction cylinder.
Description
Technical Field
The utility model relates to a teaching equipment field, in particular to physics experiment vacuum bell for teaching.
Background
On the basis of the technical conditions of the existing physical teaching tool, still have a lot of insufficiencies in scope nature and convenience of use, in traditional physical teaching, on the teaching device that can not make a sound in vacuum, the teaching material is supporting to be the electric air pump, electric motor noise is very big, influence the teaching atmosphere in classroom, the mechanical alarm clock sound that the teaching material is supporting is relatively less, the glass bell jar glass is very thick, play very big barrier action to the propagation of sound, the area of bell jar base is very big, even scribble vaseline between base and bell jar, but sealed effect still is strong and pleasing to the eye, often there is the gas leakage phenomenon, on the experimental result, the glass bell jar gas leakage, it is difficult to take out the vacuum, and the mechanical alarm clock sound is pressed to the air pump sound, it is difficult to obtain the experimental conclusion that "can not make a sound in vacuum".
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to overcome prior art's defect, provide a physics experiment vacuum bell for teaching.
In order to solve the technical problem, the utility model provides a following technical scheme:
the utility model relates to a physics experiment vacuum bell for teaching, including the gas collecting bottle main part, the inside of gas collecting bottle main part has hung bee calling organ, and is unsettled structure, the last series connection of bee calling organ installs emitting diode, install the rubber seal plug in the gas collecting bottle main part, run through on the rubber seal plug has the exhaust tube, and extends to the inside of gas collecting bottle main part, the outside one end of exhaust tube is connected with the rubber tube, the one end of rubber tube is connected with the evacuation machine.
As an optimized technical scheme of the utility model, the sealing ring is installed to the bottleneck inboard of gas collection bottle main part, and with rubber sealing plug zonulae occludens.
As an optimized technical proposal of the utility model, the vacuum-pumping machine is connected with the main body of the gas collecting bottle through a rubber tube.
Compared with the prior art, the beneficial effects of the utility model are as follows:
the utility model relates to a physics experiment vacuum bell for teaching can effectively solve the teaching problem of physics experiment device, and whole device is small and exquisite light, and the teacher of being convenient for demonstrates the operation on class adopts the gas collecting bottle to experiment and uses, cooperates corresponding sealing device, has excellent gas tightness, adopts the fine noise problem that solves the electric air extractor and bring of evacuation machine, and the time spent not enough 30S quick evacuation, more high-efficient laborsaving than the manual air exhaust of air extract cylinder.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic view of the overall structure of the present invention;
in the figure: 1. a gas collection bottle main body; 2. a buzzer; 3. a light emitting diode; 4. a rubber sealing plug; 5. an air exhaust pipe; 6. a seal ring; 7. a rubber tube; 8. and (4) vacuumizing machine.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.
Example 1
As shown in fig. 1, the utility model provides a physics experiment vacuum bell for teaching, including gas collecting bottle main part 1, buzzer 2 has hung to the inside of gas collecting bottle main part 1, and is unsettled structure, and emitting diode 3 is installed to the last series connection of buzzer 2, installs rubber sealing plug 4 in the gas collecting bottle main part 1, and it has exhaust tube 5 to run through on the rubber sealing plug 4, and extends to the inside of gas collecting bottle main part 1, and the outside one end of exhaust tube 5 is connected with rubber tube 7, and the one end of rubber tube 7 is connected with evacuation machine 8.
Further, sealing ring 6 is installed to the bottleneck inboard of gas collection bottle main part 1, and with rubber seal plug 4 zonulae occludens, sets up sealing ring 6 and is used for the bottleneck of gas collection bottle main part 1 to seal, promotes inside gas tightness, prevents to take place the leakage condition.
The vacuum extractor 8 is connected with the gas collecting bottle main body 1 through a rubber tube 7, and vacuum extraction is carried out through the arranged rubber tube 7.
Specifically, the device is used for teaching demonstration, the buzzer 2 arranged inside is used for alarming and lifting, the light source display is carried out through the arranged light emitting diode 3, the device is used for experiments on whether sound can be transmitted in vacuum or not and whether light can be transmitted in vacuum or not, the vacuumizing power is provided through the arranged vacuumizing machine 8, the vacuumizing machine 8 is a traditional portable food vacuum machine, the device is connected into the gas collecting bottle main body 1 through the arranged rubber tube 7 and the arranged exhaust tube 5, the air in the gas collecting bottle main body 1 is evacuated, the sealing ring 6 is arranged for sealing the bottle mouth of the gas collecting bottle main body 1, the internal air tightness is improved, the leakage condition is prevented, the alarm sound of the buzzer is observed to be smaller and smaller through experiments, but the light source is still visible, the result of physical experiments can be verified, the whole device is small and convenient, and can be moved to students for demonstration, the practicability is strong.
The teaching problem of physics experimental apparatus can effectively be solved to this equipment, and whole device is small and exquisite light, and the teacher of being convenient for demonstrates the operation on class, adopts the gas collecting bottle to experiment and uses, cooperates corresponding sealing device, has excellent gas tightness, adopts the fine noise problem that solves electronic air extractor of evacuation machine brought, and the time-consuming not enough 30S quick evacuation, than the manual more high-efficient laborsaving of bleeding of exhaust tube.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. The utility model provides a physics experiment vacuum bell for teaching, includes gas collecting bottle main part (1), its characterized in that, the inside of gas collecting bottle main part (1) has hung bee calling organ (2), and is unsettled structure, emitting diode (3) are installed to the series connection on bee calling organ (2), install rubber sealing plug (4) on gas collecting bottle main part (1), it has exhaust tube (5) to run through on rubber sealing plug (4), and extends to the inside of gas collecting bottle main part (1), the outside one end of exhaust tube (5) is connected with rubber tube (7), the one end of rubber tube (7) is connected with evacuation machine (8).
2. The physics experiment vacuum bell for teaching of claim 1, characterized in that the inside of the mouth of the gas collecting bottle body (1) is installed with a sealing ring (6) and tightly connected with a rubber sealing plug (4).
3. Physical experiment vacuum bell for teaching purpose according to claim 1, characterized in that the vacuum extractor (8) is connected to the main body (1) of the collector bottle by means of a rubber tube (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020076598.3U CN211181339U (en) | 2020-01-15 | 2020-01-15 | A physics experiment vacuum bell for teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020076598.3U CN211181339U (en) | 2020-01-15 | 2020-01-15 | A physics experiment vacuum bell for teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211181339U true CN211181339U (en) | 2020-08-04 |
Family
ID=71805016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020076598.3U Expired - Fee Related CN211181339U (en) | 2020-01-15 | 2020-01-15 | A physics experiment vacuum bell for teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211181339U (en) |
-
2020
- 2020-01-15 CN CN202020076598.3U patent/CN211181339U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200804 Termination date: 20210115 |