CN201421676Y - Demonstrator for physics and chemistry teaching experiment - Google Patents
Demonstrator for physics and chemistry teaching experiment Download PDFInfo
- Publication number
- CN201421676Y CN201421676Y CN2009200270429U CN200920027042U CN201421676Y CN 201421676 Y CN201421676 Y CN 201421676Y CN 2009200270429 U CN2009200270429 U CN 2009200270429U CN 200920027042 U CN200920027042 U CN 200920027042U CN 201421676 Y CN201421676 Y CN 201421676Y
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- CN
- China
- Prior art keywords
- metal bucket
- barrel
- iron barrel
- teaching
- physics
- 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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- Devices For Use In Laboratory Experiments (AREA)
Abstract
The utility model relates to a demonstrator for a physics and chemistry teaching experiment, which belongs to the teaching experiment supplies. The demonstrator consists of a bottom support plate, a micro vacuum pump, an iron barrel and a bracket, wherein the bottom support plate is provided with the bracket, the bracket is provided with the iron barrel, the lower part of the iron barrel is provided with an electric heating device used for heating the iron barrel, the barrel wall on one side of the iron barrel is provided with an air suction pipe, the air suction pipe is provided with an air suction pipe switch and communicated with the micro vacuum pump, one side of the micro vacuum pump is provided with a power supply controller, the barrel wall on the other side of the iron barrel is provided with a water level gauge, an air gauge is arranged just above the iron barrel, one side of the air gauge is provided with a valve, and the other side of the air gauge is provided with a thermometer. The utility model has a simple structure, realizes the demonstration of certain physical and chemical teaching, helps the students to directly understand physical and chemical principles, improves the interest of the students in learning, and enriches the teaching class.
Description
Technical field:
The utility model belongs to the education experiment articles for use, particularly physics and chemistry teaching and experimental demonstration instrument.
Background technology:
In the physics and chemistry teaching, teaching demonstration equipment is less, and difficult especially when the student understands some abstract physical and chemical principles, a lot of students have lost the interest of study, influence teaching efficiency.
The utility model content:
The utility model is the deficiency that overcomes the problems referred to above, the spy provides a kind of physics and chemistry teaching and experimental demonstration instrument, realize like this on the physics and chemistry teaching and experimental demonstration instrument of the present utility model: on backing board, be provided with support, support is provided with metal bucket, be provided with below metal bucket and can on the bucket wall of metal bucket one side exhaust tube be housed to the electric heater unit of metal bucket heating, exhaust tube is provided with the exhaust tube switch, exhaust tube is communicated with minipump, and one side of minipump is provided with power-supply controller of electric; On the bucket wall of metal bucket opposite side, water level gauge is housed, directly over metal bucket, is provided with barometer, be provided with valve, at barometrical another other thermometer that is provided with in barometrical one side.
The utility model can be realized multinomial Physical Chemistry Experiment, can know atmospheric existence by this demonstrator, such as opening minipump, finds barometrical variation.Can also understand the variation between air pressure and the boiling point of liquid, such as can in metal bucket, injecting a certain amount of water, valve-off, open minipump, open electric heater unit, from water level gauge, observe the situation of water boiling, the temperature of record water boiling chronothermometer and the air pressure on the barometer, thereby it is more little to draw air pressure, and the boiling point of water is low more.Can also pass through burning test, calculate oxygen content in the air, so that draw oxygen in aflame effect.
Beneficial effect: the utility model is simple in structure, can realize more physicochemical teaching demonstrations, helps the student and understands physical and chemical principle intuitively, improves the interest of student's study, has enriched teaching classroom.
Description of drawings:
Accompanying drawing 1 is a structural representation of the present utility model: 1, backing board 2, power-supply controller of electric 3, minipump 4, exhaust tube 5, exhaust tube switch 6, metal bucket 7, valve 8, barometer 9, thermometer 10, water level gauge 11, support 12, electric heater unit
Embodiment:
1 embodiment is as follows in conjunction with the accompanying drawings: physics and chemistry teaching and experimental demonstration instrument is made of backing board 1, minipump 3, metal bucket 6 and support 11, on backing board 1, be provided with support 11,11 are provided with metal bucket 6 on the support, below metal bucket 6, be provided with and give the electric heater unit 12 of metal bucket 6 heating, on the bucket wall of metal bucket 6 one sides, exhaust tube 4 is housed, exhaust tube 4 is provided with exhaust tube switch 5, and exhaust tube 4 is communicated with minipump 3, and one side of minipump 3 is provided with power-supply controller of electric 2; The switch that is used for controlling minipump 3 and electric heater unit 12 is respectively arranged on the power-supply controller of electric 2; On the bucket wall of metal bucket 6 opposite sides, water level gauge 10 is housed, directly over metal bucket 6, is provided with barometer 8, be provided with valve 7, at another other thermometer 9 that is provided with of barometer 8 in one side of barometer 8.The utility model can be realized multinomial Physical Chemistry Experiment, can know atmospheric existence by this demonstrator, such as opening minipump 3, finds the variation of barometer 8.Can also understand the variation between air pressure and the boiling point of liquid, such as can in metal bucket 6, injecting a certain amount of water, valve-off 7, open minipump 3, open electric heater unit 12, from water level gauge 10, observe the situation of water boiling, the temperature of record water boiling chronothermometer and the air pressure on the barometer, thereby it is more little to draw air pressure, and the boiling point of water is low more.Can also pass through burning test, calculate oxygen content in the air, so that draw oxygen in aflame effect.
Claims (1)
1, physics and chemistry teaching and experimental demonstration instrument is made of backing board (1), minipump (3), metal bucket (6) and support (11), on backing board (1), be provided with support (11), it is characterized in that: (11) are provided with metal bucket (6) on the support, below metal bucket (6), be provided with the electric heater unit (12) that to give metal bucket (6) heating, on the bucket wall of metal bucket (6) one sides, exhaust tube (4) is housed, exhaust tube (4) is provided with exhaust tube switch (5), exhaust tube (4) is communicated with minipump (3), and one side of minipump (3) is provided with power-supply controller of electric (2); On the bucket wall of metal bucket (6) opposite side, water level gauge (10) is housed, directly over metal bucket (6), is provided with barometer (8), be provided with valve (7), at another other thermometer (9) that is provided with of barometer (8) in one side of barometer (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200270429U CN201421676Y (en) | 2009-06-14 | 2009-06-14 | Demonstrator for physics and chemistry teaching experiment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200270429U CN201421676Y (en) | 2009-06-14 | 2009-06-14 | Demonstrator for physics and chemistry teaching experiment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201421676Y true CN201421676Y (en) | 2010-03-10 |
Family
ID=41808337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200270429U Expired - Fee Related CN201421676Y (en) | 2009-06-14 | 2009-06-14 | Demonstrator for physics and chemistry teaching experiment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201421676Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103730045A (en) * | 2014-01-20 | 2014-04-16 | 西南大学 | Comprehensive demonstration instrument for studying gas discharge phenomenon and air pressure influence on liquid boiling points |
-
2009
- 2009-06-14 CN CN2009200270429U patent/CN201421676Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103730045A (en) * | 2014-01-20 | 2014-04-16 | 西南大学 | Comprehensive demonstration instrument for studying gas discharge phenomenon and air pressure influence on liquid boiling points |
| CN103730045B (en) * | 2014-01-20 | 2015-09-30 | 西南大学 | Probe into the comprehensive demonstration instrument that gas discharge phenomenon and air pressure affect boiling point of liquid |
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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: 20100310 Termination date: 20100614 |