CN204557881U - A kind of buoyancy demonstrating device - Google Patents
A kind of buoyancy demonstrating device Download PDFInfo
- Publication number
- CN204557881U CN204557881U CN201520166014.0U CN201520166014U CN204557881U CN 204557881 U CN204557881 U CN 204557881U CN 201520166014 U CN201520166014 U CN 201520166014U CN 204557881 U CN204557881 U CN 204557881U
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- bead
- balance
- beaker
- water
- demonstrating device
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Abstract
The utility model discloses a kind of buoyancy demonstrating device, it is characterized in that, comprise support, balance stem, balance, expansion link, hydraulic tray, be filled with water beaker, water receiving beaker and bead I, bead II, balance stem by pinned connection in cantilever tip, balance stem two-end-point is provided with cotton rope, the end of cotton rope is fixed with hook, hook hangs with bead I and bead II, balance is positioned at below balance stem, the side of balance is placed with water receiving beaker, the opposite side of balance is positioned at immediately below bead I, bead I contacts by expansion link and balance are tangent, the beaker that is filled with water is positioned at immediately below bead II, the beaker that is filled with water is placed on hydraulic tray.The utility model is in presentation process, without the need to unnecessary step, only need constantly to raise hydraulic tray until bead is submerged, the complex relationship that bead arranges between buoyancy that the gravity of liquid and bead be subject in a liquid can be intuitively clear, the selection of lecture experiment is multiple, allows student obtain directly perceived, lively Cognitive Effects.
Description
Technical field
The present invention relates to physics teaching demonstration device, be specifically related to a kind of buoyancy demonstrating device.
Background technology
Buoyancy refers to that object is in fluid (comprising liquids and gases), the pressure differential suffered by upper and lower surface.Existing apparatus for demonstrating complicated operation, need multiple step that student just can be made to recognize the principle of buoyancy, hook is not clear, present urgent need is a kind of simple to operate, the buoyancy demonstrating device that visual result is clear, be the principle that student can observe buoyancy intuitively, the equilibrium relation of buoyancy and gravity can be recognized simultaneously.
Summary of the invention
For the deficiencies in the prior art part, the invention provides a kind of buoyancy demonstrating device, it is characterized in that, comprise support 1, balance stem 2, balance 3, expansion link 4, hydraulic tray 5, be filled with water beaker 6, water receiving beaker 7 and bead I 8, bead II 9, described support 1 is made up of triangle base 10 and pole 11, described balance stem 2 by pinned connection on pole 11 top, balance stem 2 two-end-point is provided with cotton rope 12, the end of cotton rope 12 is fixed with hook, hook hangs with bead I 8 and bead II 9, described balance 3 is positioned at below balance stem 2, the side of balance 3 is placed with water receiving beaker 7, the opposite side of balance is positioned at immediately below bead I 8, bead I 8 is contacted with balance 3 is tangent by expansion link 4, the described beaker 6 that is filled with water is positioned at immediately below bead II 9, the beaker 6 that is filled with water is placed on hydraulic tray 5.
Further, described pole 11 adopts flexible adjustable rod.
Further, described expansion link 4 bottom is fixedly connected with sucker 13, and ensure that expansion link can not fall and affect experimental result on balance 3, top is fixed with semicircle pallet 14.
Further, described hydraulic tray 5 comprises pallet and hydraulic jack, and pallet is fixed on the top of hydraulic jack push rod.
Further, the side of the described beaker 6 that is filled with water is connected with rising pipe 15, and rising pipe 15 is positioned at directly over balance 3 upper accepting water beaker 7.
Further, described described bead I 8 and bead II 9 top are provided with suspension ring, and bead uses in pairs, bead can select Metal Ball, baton round, wooden ball one or more, quality and the density of bead have multiple choices, can carry out organizing lecture experiment more.,
Further, described cotton rope 12 adopts elastic force cotton rope.
Further, described buoyancy demonstrating device also comprises weights 16, is used for making balance 3 reach balance.
Use procedure of the present invention and principle: first the various piece of device is connected according to position relationship, water receiving beaker 7 and expansion link 4 and weights 16 is put respectively in the both sides of balance 3, make wherein bead I 8 tangent with expansion link 4, the bead I 8 at balance stem 2 two ends and bead II 9 are found equilibrium position, constantly raise hydraulic tray 5, allow bead I 8 be filled with water in beaker 6 with liquid comes into contact, being filled with water in beaker 6 will be flow in water receiving beaker 7 along rising pipe 15 by the liquid that bead I 8 arranges, inclination declines by balance 3 pallet of water receiving beaker 7 side, the bead II 9 making balance 3 pallet of expansion link 4 side increase on promotion expansion link 4 rises, the spring cotton rope 12 at balance stem 2 two ends will shrink, until balance stem 2 balances again, in the process of balance, can be clearly seen that gravity that bead I 8 leaching arranges liquid in a liquid equals object and soaks the buoyancy be subject in a liquid.Can select different quality, the bead of different densities is demonstrated, and also can change the liquid in water cup 6 simultaneously, carry out identical in quality, the experimental demonstration that density is different; Also density can be carried out identical, the lecture experiment that quality is different.
The invention has the beneficial effects as follows:
In presentation process, without the need to unnecessary step, only need constantly to raise hydraulic tray until bead is submerged, the complex relationship that bead arranges between buoyancy that the gravity of liquid and bead be subject in a liquid can be intuitively clear.
Structure of the present invention is simple, and the selection of lecture experiment is multiple, easy to use, allows student obtain directly perceived, lively Cognitive Effects.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In figure: support 1, balance stem 2, balance 3, expansion link 4, hydraulic tray 5, the beaker 6 that is filled with water, water receiving beaker 7, bead I 8, bead II 9, triangle base 10, pole 11, cotton rope 12, sucker 13, semicircle pallet 14, rising pipe 15, weights 16.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further details, a kind of buoyancy demonstrating device, it is characterized in that, comprise support 1, balance stem 2, balance 3, expansion link 4, hydraulic tray 5, be filled with water beaker 6, water receiving beaker 7 and bead I 8, bead II 9, described support 1 is made up of triangle base 10 and pole 11, described balance stem 2 by pinned connection on pole 11 top, balance stem 2 two-end-point is provided with cotton rope 12, the end of cotton rope 12 is fixed with hook, hook hangs with bead I 8 and bead II 9, described balance 3 is positioned at below balance stem 2, the side of balance 3 is placed with water receiving beaker 7, the opposite side of balance is positioned at immediately below bead I 8, bead I 8 is contacted with balance 3 is tangent by expansion link 4, the described beaker 6 that is filled with water is positioned at immediately below bead II 9, the beaker 6 that is filled with water is placed on hydraulic tray 5.
Further, described pole 11 adopts flexible adjustable rod.
Further, described expansion link 4 bottom is fixedly connected with sucker 13, and ensure that expansion link can not fall and affect experimental result on balance 3, top is fixed with semicircle pallet 14.
Further, described hydraulic tray 5 comprises pallet and hydraulic jack, and pallet is fixed on the top of hydraulic jack push rod.
Further, the side of the described beaker 6 that is filled with water is connected with rising pipe 15, and rising pipe 15 is positioned at directly over balance 3 upper accepting water beaker 7.
Further, described described bead I 8 and bead II 9 top are provided with suspension ring, and bead uses in pairs, bead can select Metal Ball, baton round, wooden ball one or more, quality and the density of bead have multiple choices, can carry out organizing lecture experiment more.,
Further, described cotton rope 12 adopts elastic force cotton rope.
Further, described buoyancy demonstrating device also comprises weights 16, is used for making balance 3 reach balance.
Use procedure of the present invention and principle: first the various piece of device is connected according to position relationship, water receiving beaker 7 and expansion link 4 and weights 16 is put respectively in the both sides of balance 3, make wherein bead I 8 tangent with expansion link 4, the bead I 8 at balance stem 2 two ends and bead II 9 are found equilibrium position, constantly raise hydraulic tray 5, allow bead I 8 be filled with water in beaker 6 with liquid comes into contact, being filled with water in beaker 6 will be flow in water receiving beaker 7 along rising pipe 15 by the liquid that bead I 8 arranges, inclination declines by balance 3 pallet of water receiving beaker 7 side, the bead II 9 making balance 3 pallet of expansion link 4 side increase on promotion expansion link 4 rises, the spring cotton rope 12 at balance stem 2 two ends will shrink, until balance stem 2 balances again, in the process of balance, can be clearly seen that gravity that bead I 8 leaching arranges liquid in a liquid equals object and soaks the buoyancy be subject in a liquid.Can select different quality, the bead of different densities is demonstrated, and also can change the liquid in water cup 6 simultaneously, carry out identical in quality, the experimental demonstration that density is different; Also density can be carried out identical, the lecture experiment that quality is different.
The present invention, in presentation process, without the need to unnecessary step, only needs constantly to raise hydraulic tray until bead is submerged, and the complex relationship that bead arranges between buoyancy that the gravity of liquid and bead be subject in a liquid can be intuitively clear.
Structure of the present invention is simple, and the selection of lecture experiment is multiple, easy to use, allows student obtain directly perceived, lively Cognitive Effects.
Above-mentioned explanation is not limitation of the present invention, and the present invention is also not limited in above-mentioned citing, and the change that those skilled in the art make in essential scope of the present invention, remodeling, interpolation or replacement also should belong to protection scope of the present invention.
Claims (8)
1. a buoyancy demonstrating device, it is characterized in that, comprise support (1), balance stem (2), balance (3), expansion link (4), hydraulic tray (5), be filled with water beaker (6), water receiving beaker (7) and bead I (8), bead II (9), described support (1) is made up of triangle base (10) and pole (11), described balance stem (2) by pinned connection on pole (11) top, balance stem (2) two-end-point is provided with cotton rope (12), the end of cotton rope (12) is fixed with hook, hook hangs with bead I (8) and bead II (9), described balance (3) is positioned at balance stem (2) below, the side of balance (3) is placed with water receiving beaker (7), the opposite side of balance (3) is positioned at immediately below bead I (8), bead I (8) is contacted with balance (3) is tangent by expansion link (4), the described beaker that is filled with water (6) is positioned at immediately below bead II (9), the beaker (6) that is filled with water is placed on hydraulic tray (5).
2. a kind of buoyancy demonstrating device according to claim 1, is characterized in that, described pole (11) adopts flexible adjustable rod.
3. a kind of buoyancy demonstrating device according to claim 1, it is characterized in that, described expansion link (4) bottom is fixedly connected with sucker (13), and top is fixed with semicircle pallet (14).
4. a kind of buoyancy demonstrating device according to claim 1, it is characterized in that, described hydraulic tray (5) comprises pallet and hydraulic jack, and pallet is fixed on the top of hydraulic jack push rod.
5. a kind of buoyancy demonstrating device according to claim 1, it is characterized in that, the side of the described beaker that is filled with water (6) is connected with rising pipe (15), and rising pipe (15) is positioned at directly over balance (3) upper accepting water beaker (7).
6. a kind of buoyancy demonstrating device according to claim 1, it is characterized in that, described bead I (8) and bead II (9) top are provided with suspension ring, and bead uses in pairs, bead can select Metal Ball, baton round, wooden ball one or more.
7. a kind of buoyancy demonstrating device according to claim 1, is characterized in that, described cotton rope (12) adopts elastic force cotton rope.
8. a kind of buoyancy demonstrating device according to claim 1, it is characterized in that, described buoyancy demonstrating device also comprises weights (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520166014.0U CN204557881U (en) | 2015-03-24 | 2015-03-24 | A kind of buoyancy demonstrating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520166014.0U CN204557881U (en) | 2015-03-24 | 2015-03-24 | A kind of buoyancy demonstrating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204557881U true CN204557881U (en) | 2015-08-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520166014.0U Expired - Fee Related CN204557881U (en) | 2015-03-24 | 2015-03-24 | A kind of buoyancy demonstrating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204557881U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105206144A (en) * | 2015-10-15 | 2015-12-30 | 罗雯睿 | Buoyancy experimental device and method for physics teaching |
-
2015
- 2015-03-24 CN CN201520166014.0U patent/CN204557881U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105206144A (en) * | 2015-10-15 | 2015-12-30 | 罗雯睿 | Buoyancy experimental device and method for physics teaching |
| CN105206144B (en) * | 2015-10-15 | 2017-04-12 | 罗雯睿 | Buoyancy experimental device and method for physics teaching |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150812 Termination date: 20180324 |
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| CF01 | Termination of patent right due to non-payment of annual fee |