CN2886549Y - Air composition detector - Google Patents
Air composition detector Download PDFInfo
- Publication number
- CN2886549Y CN2886549Y CN 200620031573 CN200620031573U CN2886549Y CN 2886549 Y CN2886549 Y CN 2886549Y CN 200620031573 CN200620031573 CN 200620031573 CN 200620031573 U CN200620031573 U CN 200620031573U CN 2886549 Y CN2886549 Y CN 2886549Y
- Authority
- CN
- China
- Prior art keywords
- box
- igniting
- spoon
- electric
- deflagration
- 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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- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses an air composition analyzer, comprising a deflagration spoon with a rubber plug and its combustion bottle, a conduit, a clamp and a water container, wherein an electric igniting needle is arranged in the deflagration spoon, a wire on top of the electric igniting needle is crossed through the rubber plug and connected on a igniting switch, the igniting switch is fixed in a box, a battery and a voltmeter and connected by a wire on the igniting switch in the box. Due to an electric igniting needle is installed on the deflagration spoon, a suit of igniting device which can be arranged in the box is communicated with the electric igniting needle, and every experimental equipment can be placed in the box while not using, the utility model has the following advantages: first, the ignition is carried out after sealing, thereby the harm of the poisonous gas to teachers and students is effectively avoided; second, the class time is saved; third, the gas tightness is good and the experiment success rate is high; fourth, group experiment of students is convenient; fifth, the storage and transport are very convenient.
Description
Technical field:
The utility model relates to surveying instrument, probes into the composition of air exploring instrument of oxygen volume content in the air in particularly a kind of teaching with burning red phosphorus.
Background technology:
Present instruments used for education " composition of air exploring instrument ", it includes a combustion spoon and a Molotov cocktail, a salable rubber stopper in the burning bottleneck is arranged on the burning the shank of the key, also be connected with one in the rubber stopper and lead to the inside and outside conduit of bottle, the conduit outer end is led in the water receptacle, and the conduit middle part is provided with the clip that makes the conduit sealing.This instrument is when doing experiment, and bad because of impermeability, inflow is unsecured in the gas bottle, and experiment success rate is extremely low; The waste time in classroom, then stretch in the Molotov cocktail because of externally lighting red phosphorus again, the hypertoxic gas " diphosphorus trioxide " (or phosphorus nitride) that produces when uncontrollable red phosphorus burns spreads in air, so the serious harm that can't avoid hypertoxic gas that teachers and students' health is caused; And operation easier is big, is unfavorable for that the student does it yourself to probe into.
Summary of the invention:
The purpose of this utility model is a kind of experiment success rate height of design, avoids poison gas to spread in air, is beneficial to student experiment in group, saves the composition of air exploring instrument of time in classroom.
Task of the present utility model is finished as follows, it includes combustion spoon and Molotov cocktail, conduit, clip and the water receptacle of a band rubber plug, it is characterized in that: in combustion spoon, be provided with an electric ignition pin, having lead to pass rubber stopper on the electric ignition pin is connected on the ignition switch, ignition switch is fixed in the box, with what lead connected battery and voltage table is arranged in the box on ignition switch.
The utility model is owing to be equipped with an electric ignition pin on combustion spoon, and the portfire that can be contained in the box with a cover is communicated with the electric ignition pin, and can each experiment utensil be placed in the box in time spent, therefore, have: 1. sealing earlier, after light, effectively avoid of the harm of hypertoxic gas to teachers and students; 2. saving time in classroom; 3. impermeability is good, the experiment success rate height; 4. help the student and carry out grouping experiment; 5. take care of and advantage easy to carry.
Description of drawings:
Fig. 1 is a structural representation of the present utility model.
Embodiment:
The utility model is improvements over the prior art, it includes the rubber stopper 7 of a band combustion spoon 6, be installed in addition and be communicated with the inside and outside rubber catheter 10 of Molotov cocktail 8 and conduit clip 9, water receptacle 11 in the rubber stopper, main improvement is to be provided with an electric ignition pin 12 in combustion spoon, electric ignition pin upper end is passed rubber stopper and is connected with an ignition switch 5 with lead 3, ignition switch is fixed in the box 1, with what lead linked to each other battery 2 and voltage table 4 is arranged in the box 1 on ignition switch.At ordinary times time spent not, each can be tested apparatus and together be placed in the box.
The utility model as shown in Figure 1, is opened box when doing education experiment, take out Molotov cocktail and water receptacle, in combustion spoon, put into red phosphorus after, with the rubber stopper jam-pack on the burning bottleneck, with clip conduit is clamped sealing, open ignition switch then, the electric current of battery promptly enters in the combustion spoon on the electric ignition pin by lead 3, light a fire, red phosphorus is lighted, unclamp clip after the cooling, water in the water receptacle can enter Molotov cocktail, reach the purpose of education experiment, poison gas can not take place and reveal in the success ratio height.
Claims (1)
1, a kind of composition of air exploring instrument, it includes combustion spoon and Molotov cocktail, conduit, clip and the water receptacle of a band rubber plug, it is characterized in that: in combustion spoon, be provided with an electric ignition pin, having lead to pass rubber stopper on the electric ignition pin is connected on the ignition switch, ignition switch is fixed in the box, with what lead connected battery and voltage table is arranged in the box on ignition switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620031573 CN2886549Y (en) | 2006-04-11 | 2006-04-11 | Air composition detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620031573 CN2886549Y (en) | 2006-04-11 | 2006-04-11 | Air composition detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2886549Y true CN2886549Y (en) | 2007-04-04 |
Family
ID=37961638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620031573 Expired - Fee Related CN2886549Y (en) | 2006-04-11 | 2006-04-11 | Air composition detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2886549Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102621032A (en) * | 2012-03-19 | 2012-08-01 | 扬州大学 | Automatic tester for gas content in coal gas |
-
2006
- 2006-04-11 CN CN 200620031573 patent/CN2886549Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102621032A (en) * | 2012-03-19 | 2012-08-01 | 扬州大学 | Automatic tester for gas content in coal gas |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |