CN201210362Y - Quantitative gas firing gun for secondary school experiment - Google Patents
Quantitative gas firing gun for secondary school experiment Download PDFInfo
- Publication number
- CN201210362Y CN201210362Y CNU2008200767155U CN200820076715U CN201210362Y CN 201210362 Y CN201210362 Y CN 201210362Y CN U2008200767155 U CNU2008200767155 U CN U2008200767155U CN 200820076715 U CN200820076715 U CN 200820076715U CN 201210362 Y CN201210362 Y CN 201210362Y
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- China
- Prior art keywords
- gun barrel
- gun
- piston
- inner chamber
- scale
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Abstract
The utility model relates to an experimental teaching apparatus, namely an apparatus for detonating experiment on flammable gas in chemical experimental teaching, wherein it is composed of a gun barrel, a gunstock and an electronic igniter; the gun barrel installed on upper part of the gunstock is transparent, with quarters etched thereon, the inner chamber of the gun barrel is installed with a piston matched therewith, rear part of the piston is disposed with a piston draw-pull handle of push-pull rod type, rear part of the piston draw-pull handle extends out of the gun barrel from rear part thereof, a rubber plug is plugged on fore part of the gun barrel, the rubber plug is disposed with longitudinally penetrated ventholes, the rubber plug inside the inner chamber of the gun barrel is disposed with a unilateral valve for sealing the ventholes, the electronic igniter is disposed on the gunstock, the ignition point on high pressure electronic lead end of the electronic igniter is disposed in inner chamber of fore end of the gun barrel. This utility model is a chemical experiment apparatus for high school, with low costs, operation convenience, being easy to promotion.
Description
Technical field
The utility model relates to a kind of experiment device for teaching, is a kind of device that is used for middle school chemistry experiment teaching inflammable gas detonating experiment.
Background technology
At present, in high school chemistry teaching, the detonating experiment of gas can only carry out qualitative experiment, can not carry out quantitative experiment, the detonating experiment effect is difficult to guarantee, and exist and get gas inconvenience, the gas waste is many, and gas consumption is big, interesting poor, operation inconvenience, defective such as lose time, even the experiment that has causes environmental pollution.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of use cost low, easy and simple to handle, is convenient to the middle school chemical experiment quantitative gas detonation rifle of popularizing and promoting.
The purpose of this utility model can realize by following technical measures:
Middle school chemical experiment quantitative gas detonation rifle mainly is made up of gun barrel, gun stock, ignition.The gun barrel that is installed on gun stock top is transparent gun barrel, on gun barrel, have scale, at the gun barrel inner chamber of gun barrel piston with its coupling is housed, there is the piston pull handle of push-and-pull rod-type at the rear portion of piston, gun barrel is stretched out from the rear portion of gun barrel in the rear portion of piston pull handle, the front end of gun barrel is plugged with plug, the air hole that vertical perforation is arranged on the plug, the plug of gun barrel inner chamber is provided with the individual event valve of shutoff air hole, gun stock is provided with electronic lighter, and the sparking point of electronic lighter high-pressure electronic wire end is arranged on the inner chamber of gun barrel front end.
The purpose of this utility model can also realize by following technical measures:
Gun barrel is the lucite pipe of band scale, and scale is at the scale of arranging after by forward direction on the gun barrel, and the sparking knob of electronic lighter is trigger-like and is arranged on the gun stock.
The inner chamber of the utility model at the gun barrel rear portion is provided with the retaining nail that stops piston.
The cross-sectional area of the utility model gun barrel inner chamber is one square centimeter a integral multiple, and scale is evenly distributed centimeter scale or is evenly distributed millimeter scale.
Architectural feature of the present utility model and principle of work are as follows:
Gun barrel is made by the lucite pipe of band scale; Piston is arranged in the gun barrel; The gun barrel front end is beyond the Great Wall with the plug of individual event valve, can only air inlet in the gun barrel, can not give vent to anger.Gun barrel is fixed on the gun stock, and electronic lighter is installed on the gun stock; An aperture is made a call at gun barrel front portion or middle part, and the sparking point (or ignition point) of electronic lighter high-pressure electronic wire end enters the gun barrel inner chamber at the aperture place, and the retaining nail prevents that piston from skidding off from gun barrel.During experiment, the source of the gas wireway is connected (being communicated with air hole) with the plug of band individual event valve, pulling piston pull handle extracts quantitative inflammable gas; Use the same method and then extract quantitative oxygen (air, chlorine), withhold the sparking knob (or being depression bar) of electronic lighter, the mixed gas in the gun barrel is detonated immediately, and the plug of gun barrel front end band individual event valve is got, and send " bang " explosion.
The utility model compared with prior art has following advantage:
1, the quantitative gas detonating experiment can be carried out, probing into of gas explosion limit can be carried out;
2, can be very easily quantitative extracting gases, gas usage is few, will waste and pollution is reduced to minimumly, but the assurance experiment effect is good;
3, this device is handsome in appearance, and rich interesting, the student is loved by all;
4, easy to operate, save time;
5, safety is convenient to the student and is used;
6, can use repeatedly, experimental cost is extremely low.
Description of drawings
Accompanying drawing is the structural representation of middle school chemical experiment quantitative gas detonation rifle
Embodiment
As shown in drawings: middle school chemical experiment quantitative gas detonation rifle, mainly form by gun barrel 6, gun stock 1, ignition 12.The gun barrel 6 that is installed on gun stock 1 top is transparent gun barrel, on gun barrel 6, have scale 5, at the gun barrel inner chamber of gun barrel 6 piston 4 with its coupling is housed, there is the piston pull handle 2 of push-and-pull rod-type at the rear portion of piston 4, gun barrel is stretched out from the rear portion of gun barrel 6 in the rear portion of piston pull handle 2, the front end of gun barrel 6 is plugged with plug 9, the air hole 8 that vertical perforation is arranged on the plug 9, the plug 9 of gun barrel 6 inner chambers is provided with the individual event valve 7 of shutoff air hole 8, gun stock 1 is provided with electronic lighter 12, and the sparking point 10 of electronic lighter 12 high-pressure electronic leads 11 ends is arranged on the inner chamber (the sparking principle of work of electronic lighter 12 is identical with the electronic lighter of prior art) of gun barrel 6 front ends.Gun barrel 6 is the lucite pipe of band scale 5, and scale 5 is at the scale of arranging after by forward direction on the gun barrel 6, and the sparking knob of electronic lighter 12 is trigger-like and is arranged on the gun stock 1.Inner chamber at gun barrel 6 rear portions is provided with the retaining nail 3 that stops piston 4.The cross-sectional area of gun barrel 6 inner chambers is one square centimeter a integral multiple, and scale 5 is evenly distributed centimeter scale.
Claims (4)
1, middle school chemical experiment quantitative gas detonation rifle, mainly by gun barrel (6), gun stock (1), ignition (12) is formed, it is characterized in that: the gun barrel (6) that is installed on gun stock (1) top is transparent gun barrel, on gun barrel (6), have scale (5), at the gun barrel inner chamber of gun barrel (6) piston (4) with its coupling is housed, there is the piston pull handle (2) of push-and-pull rod-type at the rear portion of piston (4), gun barrel is stretched out from the rear portion of gun barrel (6) in the rear portion of piston pull handle (2), the front end of gun barrel (6) is plugged with plug (9), the air hole (8) that vertical perforation is arranged on the plug (9), the plug (9) of gun barrel (6) inner chamber is provided with the individual event valve (7) of shutoff air hole (8), gun stock (1) is provided with electronic lighter (12), and the terminal sparking point (10) of electronic lighter (12) high-pressure electronic lead (11) is arranged on the inner chamber of gun barrel (6) front end.
2, middle school chemical experiment quantitative gas detonation rifle according to claim 1, it is characterized in that: gun barrel (6) is the lucite pipe of band scale (5), the scale of scale (5) for arranging after going up by forward direction at gun barrel (6), the sparking knob of electronic lighter (12) is trigger-like and is arranged on the gun stock (1).
3, middle school chemical experiment quantitative gas detonation rifle according to claim 1 and 2 is characterized in that: the inner chamber at gun barrel (6) rear portion is provided with the retaining nail (3) that stops piston (4).
4, middle school chemical experiment quantitative gas detonation rifle according to claim 3, it is characterized in that: the cross-sectional area of gun barrel (6) inner chamber is one square centimeter a integral multiple, and scale (5) is evenly distributed centimeter scale or is evenly distributed millimeter scale.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200767155U CN201210362Y (en) | 2008-05-07 | 2008-05-07 | Quantitative gas firing gun for secondary school experiment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200767155U CN201210362Y (en) | 2008-05-07 | 2008-05-07 | Quantitative gas firing gun for secondary school experiment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201210362Y true CN201210362Y (en) | 2009-03-18 |
Family
ID=40481100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200767155U Expired - Fee Related CN201210362Y (en) | 2008-05-07 | 2008-05-07 | Quantitative gas firing gun for secondary school experiment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201210362Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103903500A (en) * | 2012-12-31 | 2014-07-02 | 普教装备产业股份有限公司 | Oxyhydrogen explosion demonstration instrument |
-
2008
- 2008-05-07 CN CNU2008200767155U patent/CN201210362Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103903500A (en) * | 2012-12-31 | 2014-07-02 | 普教装备产业股份有限公司 | Oxyhydrogen explosion demonstration instrument |
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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: 20090318 Termination date: 20120507 |