CN103617759A - Buoyancy teaching demonstration instrument - Google Patents
Buoyancy teaching demonstration instrument Download PDFInfo
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- CN103617759A CN103617759A CN201310652561.5A CN201310652561A CN103617759A CN 103617759 A CN103617759 A CN 103617759A CN 201310652561 A CN201310652561 A CN 201310652561A CN 103617759 A CN103617759 A CN 103617759A
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Abstract
本发明属于教学仪器技术领域，特别涉及一种浮力教学演示仪。该演示仪包括一透明的密闭容器（1），密闭容器（1）内装有液体（2），液体（2）的液面与密闭容器（1）的顶部之间有一段空隙（3），空隙（3）通过导管（4）与针管（5）连通，密闭容器（1）内有一装有液体（2）的柱状容器（6），柱状容器（6）的顶部与柱状容器（6）内的液面之间也有一段空隙（3），柱状容器（6）的底部有细管（7）连通密闭容器（1）的液体（2）与柱状容器（6）的液体（2）。本发明不仅能直观有趣地演示重力与浮力的关系，还能对理想气体物态方程有直观地说明。
The invention belongs to the technical field of teaching instruments, in particular to a buoyancy teaching demonstration instrument. The demonstrator includes a transparent airtight container (1), the airtight container (1) is filled with a liquid (2), and there is a gap (3) between the liquid level of the liquid (2) and the top of the airtight container (1). (3) Connected with the needle tube (5) through the conduit (4), there is a columnar container (6) filled with liquid (2) in the airtight container (1), and the top of the columnar container (6) is connected with the There is also a gap (3) between the liquid surfaces, and a thin tube (7) is arranged at the bottom of the columnar container (6) to communicate with the liquid (2) in the airtight container (1) and the liquid (2) in the columnar container (6). The invention can not only intuitively and interestingly demonstrate the relationship between gravity and buoyancy, but also intuitively explain the ideal gas state equation.
Description
Technical field
The invention belongs to technical field of teaching instruments, particularly a kind of buoyancy demonstration instrument for teaching.
Background technology
The teaching practice of Middle School Physics to buoyancy, generally takes the mode of preach to impart knowledge to one's students, student can only spoon-feed ground passive receive, theory does not contact reality, teaching efficiency is poor.In prior art, also there is the apparatus for demonstrating of some buoyancy, can only demonstrate merely the relation of gravity and buoyancy, and the phenomenon of demonstrating out is more stiff.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of buoyancy demonstration instrument for teaching is provided, it can not only intuitively demonstrate the relation of gravity and buoyancy enjoyably, can also have explanation intuitively to the ideal gas equation of state.
The scheme that the present invention solve the technical problem is: a kind of buoyancy demonstration instrument for teaching, comprise a transparent closed container, liquid is housed in closed container, between the liquid level of liquid and the top of closed container, there is one section of space, space is communicated with needle tubing by conduit, in closed container, have a column shape container that liquid is housed, also have one section of space between the top of column shape container and the liquid level in column shape container, the bottom of column shape container has tubule to be communicated with the liquid of closed container and the liquid of column shape container.
As improvement, the space height in described closed container is five centimetres.
As improvement, described closed container open top, the top of closed container is by a rubber stopper seal.
As improvement, described column shape container bottom opening, the bottom of column shape container is by a rubber stopper seal, and tubule is inserted on rubber plug.
As improvement, the quantity of described tubule is 2, and 2 tubules are through the same diameter of rubber plug, and the part that 2 tubules expose column shape container is contrary along tangential direction horizontal buckling and the overbending direction of rubber plug.
As improvement, described column shape container is transparent, has a manikin in column shape container.
As improvement, described closed container and needle tubing are all fixed in a framework.
That the present invention has is simple in structure, operate advantage easily, and it can not only intuitively demonstrate the relation of gravity and buoyancy enjoyably, can also have explanation intuitively to the ideal gas equation of state.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of column shape container of the present invention bottom rubber plug.
In figure: 1, closed container; 2, liquid; 3, space; 4, conduit; 5, needle tubing; 6, column shape container; 7, tubule; 8, rubber plug; 9, manikin; 10, framework.
Embodiment
As shown in Fig. 1～2, a kind of buoyancy demonstration instrument for teaching, comprises a transparent closed container 1, closed container 1 open top, and the top of closed container 1 is by rubber plug 8 sealings.Liquid 2 is housed in closed container 1, has the space 3 of a section five centimetres high between the liquid level of liquid 2 and the top of closed container 1, space 3 is communicated with needle tubing 5 by conduit 4, and closed container 1 and needle tubing 5 are all fixed in a framework 10.In closed container 1, have a column shape container 6 that liquid 2 is housed, also have one section of space 3 between the liquid level in the top of column shape container 6 and column shape container 6, column shape container 6 is transparent, has a manikin 9 in column shape container 6, and manikin 9 is immersed in liquid 2.The bottom of column shape container 6 has tubule 7 to be communicated with the liquid 2 of closed container 1 and the liquid 2 of column shape container 6.Column shape container 6 bottom openings, the bottom of column shape container 6 is by rubber plug 8 sealings, and tubule 7 is inserted on rubber plug 8.The quantity of tubule 7 is 2, and 2 tubules 7 are through the same diameter of rubber plug 8, and the part that 2 tubules 7 expose column shape container 6 is contrary along tangential direction horizontal buckling and the overbending direction of rubber plug 8.
During demonstration, needle tubing 5 is taken out outward, the air in the space 3 of closed container 1, according to ideal gas equation of state PV=nRT, n is constant, and R is universal constant, and T also can be similar to and regard constant as, thus PV=constant, and V increases, so P reduces.And now the air in the space 3 of column shape container 6, between the air in itself and closed container 1, produced pressure difference, due to the existence of pressure difference, the original balance of two systems is destroyed, and only has by some change and just can make again system in equilibrium state.Air in the space 3 of column shape container 6, PV=constant, P reduces, certainly will increase by V, liquid 2 in column shape container 6 is extruded column shape container 6 makes V change be reduced greatly P, the liquid 2 of column shape container 6 is discharged rear quality and is reduced, and the buoyancy of column shape container 6 is constant, and buoyancy is greater than gravity and makes column shape container 6 floatings.
At column shape container 6, pass through in the process of tubule 7 drainings, the part of exposing column shape container due to 2 tubules is contrary along tangential direction horizontal buckling and the overbending direction of rubber plug, liquid 2 produces a pair of couple when tubule 7 penetrates makes column shape container 6 produce rotation, manikin 9 is like dancing a ballet under this state, and visual effect is very good.
Claims (7)
1. a buoyancy demonstration instrument for teaching, it is characterized in that: comprise a transparent closed container (1), liquid (2) is housed in closed container (1), between the top of the liquid level of liquid (2) and closed container (1), there is one section of space (3), space (3) is communicated with needle tubing (5) by conduit (4), in closed container (1), have one the column shape container (6) of liquid (2) is housed, between liquid level in the top of column shape container (6) and column shape container (6), also there is one section of space (3), the bottom of column shape container (6) has tubule (7) to be communicated with the liquid (2) of closed container (1) and the liquid (2) of column shape container (6).
2. a kind of buoyancy demonstration instrument for teaching as claimed in claim 1, is characterized in that: the space (3) in described closed container (1) is highly five centimetres.
3. a kind of buoyancy demonstration instrument for teaching as claimed in claim 1, is characterized in that: described closed container (1) open top, the top of closed container (1) is by a rubber plug (8) sealing.
4. a kind of buoyancy demonstration instrument for teaching as claimed in claim 1, is characterized in that: described column shape container (6) bottom opening, and the bottom of column shape container (6) is by a rubber plug (8) sealing, and tubule (7) is inserted on rubber plug (8).
5. a kind of buoyancy demonstration instrument for teaching as claimed in claim 4, it is characterized in that: the quantity of described tubule (7) is 2,2 tubules (7) are through the same diameter of rubber plug (8), and the part that 2 tubules (7) expose column shape container (6) is contrary along tangential direction horizontal buckling and the overbending direction of rubber plug (8).
6. a kind of buoyancy demonstration instrument for teaching as described in claim 1 or 5, is characterized in that: described column shape container (6) is transparent, has a manikin (9) in column shape container (6).
7. a kind of buoyancy demonstration instrument for teaching as claimed in claim 1, is characterized in that: described closed container (1) and needle tubing (5) are all fixed in a framework (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310652561.5A CN103617759B (en) | 2013-12-05 | 2013-12-05 | Buoyancy teaching demonstration instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310652561.5A CN103617759B (en) | 2013-12-05 | 2013-12-05 | Buoyancy teaching demonstration instrument |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103617759A true CN103617759A (en) | 2014-03-05 |
| CN103617759B CN103617759B (en) | 2015-07-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310652561.5A Expired - Fee Related CN103617759B (en) | 2013-12-05 | 2013-12-05 | Buoyancy teaching demonstration instrument |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104616568A (en) * | 2015-01-14 | 2015-05-13 | 成都绿迪科技有限公司 | Buoyancy presentation device |
| CN108922342A (en) * | 2018-07-18 | 2018-11-30 | 鲍若妍 | A kind of buoyancy teaching demonstration |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2592242Y (en) * | 2002-12-18 | 2003-12-17 | 于继明 | Toy capable of controlling sink-float in liquid |
| CN101593443A (en) * | 2008-05-26 | 2009-12-02 | 张扬 | Buoyancy demonstration teaching aid |
| CN201465367U (en) * | 2009-07-22 | 2010-05-12 | 上海市吴淞初级中学 | Cartesian diver made of beverage bottle |
| KR20110127501A (en) * | 2010-05-19 | 2011-11-25 | 김송이 | Buoyancy test apparatus |
| CN202838758U (en) * | 2012-10-25 | 2013-03-27 | 刘兴义 | Liquid buoyance and pressure intensity test demonstrator |
| CN203154816U (en) * | 2012-11-17 | 2013-08-28 | 郑晓鹏 | Energy-saving and environment-friendly floating toy |
-
2013
- 2013-12-05 CN CN201310652561.5A patent/CN103617759B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2592242Y (en) * | 2002-12-18 | 2003-12-17 | 于继明 | Toy capable of controlling sink-float in liquid |
| CN101593443A (en) * | 2008-05-26 | 2009-12-02 | 张扬 | Buoyancy demonstration teaching aid |
| CN201465367U (en) * | 2009-07-22 | 2010-05-12 | 上海市吴淞初级中学 | Cartesian diver made of beverage bottle |
| KR20110127501A (en) * | 2010-05-19 | 2011-11-25 | 김송이 | Buoyancy test apparatus |
| CN202838758U (en) * | 2012-10-25 | 2013-03-27 | 刘兴义 | Liquid buoyance and pressure intensity test demonstrator |
| CN203154816U (en) * | 2012-11-17 | 2013-08-28 | 郑晓鹏 | Energy-saving and environment-friendly floating toy |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104616568A (en) * | 2015-01-14 | 2015-05-13 | 成都绿迪科技有限公司 | Buoyancy presentation device |
| CN108922342A (en) * | 2018-07-18 | 2018-11-30 | 鲍若妍 | A kind of buoyancy teaching demonstration |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103617759B (en) | 2015-07-01 |
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Owner name: HUZHOU TEACHERS COLLEGE Free format text: FORMER OWNER: HUGE JILE Effective date: 20150521 |
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Effective date of registration: 20150521 Address after: 313000 Wuxing, Zhejiang Province, No., No. 1 Applicant after: Huzhou Teachers College Address before: 313000 room 29, 306 city homes, Wuxing District, Zhejiang, Huzhou Applicant before: Hugejile |
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| CF01 | Termination of patent right due to non-payment of annual fee |