CN2879320Y - Flotage demonstrating device - Google Patents
Flotage demonstrating device Download PDFInfo
- Publication number
- CN2879320Y CN2879320Y CN 200620089612 CN200620089612U CN2879320Y CN 2879320 Y CN2879320 Y CN 2879320Y CN 200620089612 CN200620089612 CN 200620089612 CN 200620089612 U CN200620089612 U CN 200620089612U CN 2879320 Y CN2879320 Y CN 2879320Y
- Authority
- CN
- China
- Prior art keywords
- glass tube
- container
- small container
- water container
- port
- 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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Abstract
A flotage demonstrating device includes a water container, characterized that a small container having openings in both ends is provided on inner wall of the water container, a floating ball is equiped on the lower opening of the small container to plug up the lower opening. An upper port of a 'U' shape glass tube is inserted in the small container, and a lower port of the 'U' shape glass tube is inserted on lower section of the water container. Rubber membranes capable of bearing pressure are provided on the upper and the lower port of the 'U' shape glass tube receiving tinctorial liquids facilitating to observe. Compared with the existing technology, the utility model has simple structure, strong maneuverability, and direct demonstrating effect, which not only facilitates to achieve a teaching task for a teacher, but increases interest and operating ability for a student, and helps a lot for training abilities of the student for analyzing problem and solving problem.
Description
Technical field
The utility model relates to a kind of teaching aid, particularly relates to a kind of buoyancy demonstrator, belongs to the physics teaching in secondary school apparatus, and suitable middle school student and teacher use in teaching.
Background technology
At present, the used teaching aid of people is a lot, but function singlenesses all just designs at the content that needs separately to show.In the generation of middle school period buoyancy is one of the important of physics lesson and the course of beyonding one's depth, it is not only abstract but also be difficult for understanding to press the teaching material explanation, so student and teacher press for teaching aid targetedly, yet on market, but be difficult to find this class teaching aid.
The utility model content
The purpose of this utility model is to overcome the prior art above shortcomings, improve by research, provide a kind of buoyancy demonstrator of showing that buoyancy produces that is exclusively used in, this novel teaching aid simple in structure, workable, the demonstration effect is directly perceived, both has been convenient to the teacher and has finished teaching task quickly, improved the interest and the manipulative ability of student's study again, very helpful to cultivating students ' analysis problem and problem-solving ability.
The technical scheme that the utility model provides is: this buoyancy demonstrator, include a water container, be characterized in also being provided with on this container inner wall the small container of an open at both ends, the lower end open-mouth of this small container is provided with a ball float, ball float is blocked the lower end of small container is uncovered, also be inserted with the upper port of a U-shaped glass tube in this small container, the lower port of this U-shaped glass tube is inserted in the small container below in the water container, the upper and lower port of U-shaped glass tube is equipped with the rubber membrane that can experience pressure, is equipped with in the U-shaped glass tube to be convenient to see the colored liquid of looking into.
Compared with prior art, the beneficial effects of the utility model are: simple in structure, workable, the demonstration effect is directly perceived, both be convenient to the teacher and finished teaching task quickly, improved the interest and the manipulative ability of student's study again, very helpful to cultivating students ' analysis problem and problem-solving ability.
Description of drawings
Accompanying drawing is the structural representation of the embodiment that provides of the utility model.
Embodiment
As shown in drawings, this buoyancy demonstrator, include a water container 1, also be provided with the small container 2 of an open at both ends on this container inner wall, the lower end open-mouth of this small container 2 is provided with a ball float 3, ball float 3 is blocked the lower end of small container 2 is uncovered, also be inserted with the upper port of a U-shaped glass tube 4 in this small container 2, the lower port of this U-shaped glass tube 4 is inserted in small container 2 belows in the water container 1, the upper and lower port of U-shaped glass tube 4 is equipped with the rubber membrane 5 that can experience pressure, is equipped with in the U-shaped glass tube 4 to be convenient to see the colored liquid of looking into 6.
When doing buoyancy demonstration, toward small container 2 interior pourings, at this moment ball float 3 bottoms do not have water, ball float 3 earlier, do not hike up, illustrate that ball float 3 is not subjected to buoyancy, observe from U-shaped glass tube 4 two ends liquid levels, ball float 3 tops are subjected to the pressure of the pressure of water greater than the water of below, so ball float 3 does not hike up.Continue toward small container 2 interior pourings, overflow after water is full and enter in the water container 1, along with water level in the water container 1 rises, make ball float 3 bottoms begin that water is arranged, observe U-shaped glass tube 4 two ends liquid levels simultaneously variation has taken place, ball float 3 belows are subjected to the pressure of the pressure of water greater than the water of top, at this moment, ball float 3 begins to hike up, thereby has verified the reason that buoyancy produces.
Claims (1)
1. buoyancy demonstrator, include a water container, it is characterized in that also being provided with on this container inner wall the small container of an open at both ends, the lower end open-mouth of this small container is provided with a ball float, ball float is blocked the lower end of small container is uncovered, also be inserted with the upper port of a U-shaped glass tube in this small container, the lower port of this U-shaped glass tube is inserted in the small container below in the water container, the upper and lower port of U-shaped glass tube is equipped with the rubber membrane that can experience pressure, is equipped with in the U-shaped glass tube to be convenient to see the colored liquid of looking into.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620089612 CN2879320Y (en) | 2006-03-08 | 2006-03-08 | Flotage demonstrating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620089612 CN2879320Y (en) | 2006-03-08 | 2006-03-08 | Flotage demonstrating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2879320Y true CN2879320Y (en) | 2007-03-14 |
Family
ID=37861740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620089612 Expired - Fee Related CN2879320Y (en) | 2006-03-08 | 2006-03-08 | Flotage demonstrating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2879320Y (en) |
-
2006
- 2006-03-08 CN CN 200620089612 patent/CN2879320Y/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 | ||
| 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 |