CN202771693U - Compressed air acting demonstrator - Google Patents
Compressed air acting demonstrator Download PDFInfo
- Publication number
- CN202771693U CN202771693U CN 201220482001 CN201220482001U CN202771693U CN 202771693 U CN202771693 U CN 202771693U CN 201220482001 CN201220482001 CN 201220482001 CN 201220482001 U CN201220482001 U CN 201220482001U CN 202771693 U CN202771693 U CN 202771693U
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- CN
- China
- Prior art keywords
- compressed air
- demonstrator
- syringe
- plug
- glass tube
- Prior art date
- 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.)
- Expired - Fee Related
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- Medical Preparation Storing Or Oral Administration Devices (AREA)
Abstract
The utility model discloses a compressed air acting demonstrator which includes a glass bottle, a rubber plug, a glass tube and a first injector. The rubber plug is arranged in the bottle mouth of the glass bottle. The glass tube is inserted into the rubber plug. The glass tube is communicated with the first injector via a rubber tube. The compressed air acting demonstrator is characterized in that the rubber plug is provided with a communication tube, the upper end of the communication tube is fixedly provided with a second injector, and the top of a piston of the second injector is provided with a small wood block. The compressed air acting demonstrator is simple in structure and can visually demonstrate the physical knowledge that the compressed air can do act.
Description
Technical field
The utility model relates to a kind of physics experiments of high school teaching aid, specifically a kind of compressed air to do work demonstrator.
Background technology
At present, when acquiring the knowledge point of work and energy on the high school physics class, for allow the student better understand work and energy these be more abstract, the knowledge that learning difficulty is larger just need to be carried out many-sided demonstration with experiment teaching aid and be cooperated telling about of teacher.But also there is not special instrument to demonstrate in the laboratory, the more complicated that existing experimental provision has, some experiment effects are not very directly perceived, are not very desirable.
Summary of the invention
It is a kind of simple in structure that the purpose of this utility model is to provide, and the demonstration effect is the compressed air to do work demonstrator intuitively.
In order to reach above purpose, technical scheme that the utility model adopts is: this compressed air to do work demonstrator, comprise vial, plug, glass tube and the first syringe, plug is located on the bottleneck of vial, insert glass tube at plug, glass tube is connected with the first syringe by sebific duct, it is characterized in that: be provided with communicating pipe at plug, the upper end of communicating pipe is fixed with the second syringe, is provided with wood particle in the piston upper end of the second syringe.
The beneficial effects of the utility model are: simple in structure, by two syringes that arrange, one pushes inward, play the effect of air in the compressed air bottle, pressurized air will do work and will promote another syringe piston and wood particle motion, thereby can demonstrate intuitively this physical knowledge of compressed air to do work.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Among the figure: 1, vial; 2, plug; 3, glass tube; 4, communicating pipe; 5, the first syringe; 6, wood particle; 7, the second syringe.
Embodiment
Make the utility model with reference to accompanying drawing 1.This compressed air to do work demonstrator, comprise vial 1, plug 2, glass tube 3 and the first syringe 5, plug 2 is located on the bottleneck of vial 1, insert glass tube 3 at plug 2, glass tube 3 is connected with the first syringe 5 by sebific duct, it is characterized in that: be provided with communicating pipe 4 at plug 2, the upper end of communicating pipe 4 is fixed with the second syringe 7, is provided with wood particle 6 in the piston upper end of the second syringe 7.
The utility model in use, when with hand propelled the first syringe 5, air enters in the vial 1 through glass tube 3, because vial 1 was connected with the second syringe 7 by communicating pipe 4, the piston of the second syringe 7 just can hold up wood particle 6 and move upward, and this just shows that the pressurized air in the vial 1 done merit to wood particle 6.
Claims (1)
1. compressed air to do work demonstrator, comprise vial (1), plug (2), glass tube (3) and the first syringe (5), plug (2) is located on the bottleneck of vial (1), insert glass tube (3) at plug (2), glass tube (3) is connected with the first syringe (5) by sebific duct, it is characterized in that: be provided with communicating pipe (4) at plug (2), the upper end of communicating pipe (4) is fixed with the second syringe (7), is provided with wood particle (6) in the piston upper end of the second syringe (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220482001 CN202771693U (en) | 2012-09-20 | 2012-09-20 | Compressed air acting demonstrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220482001 CN202771693U (en) | 2012-09-20 | 2012-09-20 | Compressed air acting demonstrator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202771693U true CN202771693U (en) | 2013-03-06 |
Family
ID=47778252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220482001 Expired - Fee Related CN202771693U (en) | 2012-09-20 | 2012-09-20 | Compressed air acting demonstrator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202771693U (en) |
-
2012
- 2012-09-20 CN CN 201220482001 patent/CN202771693U/en not_active Expired - Fee Related
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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: 20130306 Termination date: 20130920 |