CN204143712U - A kind of buoyancy demonstrating device - Google Patents
A kind of buoyancy demonstrating device Download PDFInfo
- Publication number
- CN204143712U CN204143712U CN201420466653.4U CN201420466653U CN204143712U CN 204143712 U CN204143712 U CN 204143712U CN 201420466653 U CN201420466653 U CN 201420466653U CN 204143712 U CN204143712 U CN 204143712U
- Authority
- CN
- China
- Prior art keywords
- cord
- spring balance
- holding bottle
- liquid holding
- iron stand
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model provides a kind of structure simple, easy to operate, visual pattern, be easy to the buoyancy demonstrating device that student understands, comprise iron stand, described iron stand is connected with the first spring balance by the first cord, floating block is connected with by the second cord below first spring balance, liquid holding bottle is provided with below floating block, liquid holding bottle outer cover has iron ring, iron ring is connected on iron stand, inner being divided into by overflow plate of liquid holding bottle contains liquid part and overflow portion, funnelform link slot is provided with below overflow portion, connecting duct below link slot, reception cup is linked with below conduit, receive cup to be connected by the 3rd cord with the second spring, second spring balance is suspended on iron stand by the 4th cord, the utility model is by the cord on regulating spring scale, the weight on spring balance is made to submerge in liquid, the buoyancy of selected weight can be drawn according to the difference of the reading of spring balance, simultaneous verification Archimedes principle.
Description
Technical field
The utility model relates to a kind of physical teaching aid, is specifically related to a kind of buoyancy demonstrating device.
Background technology
Buoyancy is the important content of middle school physical curriculum, but this part content is comparatively abstract, teacher only uses language beyond expression of words clear in teaching process, and student also not easily understands, and therefore needs to carry out aided education by apparatus for demonstrating, classroom teaching, general employing spring balance weighs the weight of object, then the object of extension is placed in the container filling water, collects the water overflowed, weigh, calculate buoyancy suffered by object and checking Archimedes principle.But do not have concrete apparatus for demonstrating, the method operates complex steps, and inconvenient, poor intuition, the water such as overflowed not easily collecting, is unfavorable for the understanding of student.
Summary of the invention
The utility model, for deficiency of the prior art, provides that a kind of structure is simple, easy to operate, visual pattern, is easy to the buoyancy demonstrating device that student understands.
Technical solutions of the utility model are achieved in that a kind of buoyancy demonstrating device, comprise iron stand, described iron stand is connected with the first spring balance by the first cord, floating block is connected with by the second cord below first spring balance, liquid holding bottle is provided with below floating block, liquid holding bottle outer cover has iron ring, iron ring is connected on iron stand, inner being divided into by overflow plate of liquid holding bottle contains liquid part and overflow portion, funnelform link slot is provided with below overflow portion, connecting duct below link slot, reception cup is linked with below conduit, receive cup to be connected by the 3rd cord with the second spring, second spring balance is suspended on iron stand by the 4th cord.
Described liquid holding bottle is cylindrical shape wide at the top and narrow at the bottom, and in liquid holding bottle, the height of overflow plate upper end is not higher than the height of liquid holding bottle bottleneck.
The beneficial effects of the utility model are as follows: simple to operate, only cord need be regulated to make the weight on spring balance submerge in liquid, the buoyancy of selected weight can be drawn according to the difference of the reading of spring balance, simultaneous verification Archimedes principle, the principle of comparison image demonstrating floating force intuitively, adopt overflow mechanism and receive cup, eliminating the step of collecting overflow liquid, it also avoid the shortcoming that in collection process, loss too much and is easily poured down or forth.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present utility model.
Accompanying drawing 2 is the outboard profile of liquid holding bottle of the present utility model.
Accompanying drawing 3 is the vertical view of liquid holding bottle of the present utility model.
embodiment
As accompanying drawing 1, 2, shown in 3, a kind of buoyancy demonstrating device, comprise iron stand 1, described iron stand 1 is connected with the first spring balance 2 by the first cord 12, floating block 4 is connected with by the second cord 13 below first spring balance 2, liquid holding bottle 5 is provided with below floating block 4, liquid holding bottle 5 outer cover has iron ring 6, iron ring 6 is connected on iron stand 1, liquid holding bottle 5 inside is divided into by overflow plate 7 and contains liquid part 8 and overflow portion 9, funnelform link slot 16 is provided with below overflow portion 9, connecting duct 10 below link slot 16, be linked with below conduit 10 and receive cup 11, receive cup 11 to be connected by the 3rd cord 14 with the second spring balance 3, second spring balance 3 is suspended on iron stand 1 by the 4th cord 15.Described liquid holding bottle 5 is in cylindrical shape wide at the top and narrow at the bottom, and in liquid holding bottle 5, the height of overflow plate 7 upper end is not higher than the height of liquid holding bottle 5 bottleneck.
During demonstration, first this device is connected, liquid is added the highest point of overflow plate 7 to liquid holding bottle 5, floating block 4 hangs on the first spring balance 2, read the registration of now the first spring balance 2, this registration is the weight of floating block 4, read the registration of the second spring balance 3, record, then the first cord 12 is regulated, floating block 4 liquid holding bottle 5 that slowly submerges is made to contain in the liquid of liquid part 8, now can see that the liquid of spilling covers overflow plate 7 and enters overflow portion 9, by the collecting action of funnel-form link slot 16, entering conduit 10 flows in reception cup 11, when partly or entirely submerging in liquid Deng floating block 4, again read the registration of the first spring balance 2 and the second spring balance 3, record, the registration difference of the first spring balance 2 is the buoyancy suffered by floating block 4, the registration difference of the second spring balance 3 is the weight of overflowing liquid, the relatively numerical value of two registration differences, Archimedes principle can be verified, make buoyancy suffered by the understanding object of student's very visual pattern equal its arrange the weight of liquid.Floating block 4 can be set to the different weight of multiple density, as wooden unit, iron block and copper billet etc., be connected respectively on the first spring balance 2 and demonstrate, the relation of density and buoyancy can be demonstrated, also the liquid of different densities can be poured in liquid holding bottle 5, as the saline solution of variable concentrations, whether demonstration object suffered buoyancy in different densities liquid is identical.
Claims (2)
1. a buoyancy demonstrating device, comprise iron stand (1), it is characterized in that: described iron stand (1) is connected with the first spring balance (2) by the first cord (12), first spring balance (2) below is connected with floating block (4) by the second cord (13), floating block (4) below is provided with liquid holding bottle (5), liquid holding bottle (5) outer cover has iron ring (6), iron ring (6) is connected on iron stand (1), liquid holding bottle (5) inside is divided into by overflow plate (7) and contains liquid part (8) and overflow portion (9), overflow portion (9) below is provided with funnelform link slot (16), link slot (16) below is connected with conduit (10), conduit (10) below is linked with and receives cup (11), receive cup (11) to be connected by the 3rd cord (14) with the second spring balance (3), second spring balance (3) is suspended on iron stand (1) by the 4th cord (15).
2. a kind of buoyancy demonstrating device according to claim 1, is characterized in that: described liquid holding bottle (5) is in cylindrical shape wide at the top and narrow at the bottom, and the height of liquid holding bottle (5) interior overflow plate (7) upper end is not higher than the height of liquid holding bottle (5) bottleneck.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420466653.4U CN204143712U (en) | 2014-08-19 | 2014-08-19 | A kind of buoyancy demonstrating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420466653.4U CN204143712U (en) | 2014-08-19 | 2014-08-19 | A kind of buoyancy demonstrating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204143712U true CN204143712U (en) | 2015-02-04 |
Family
ID=52420384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420466653.4U Expired - Fee Related CN204143712U (en) | 2014-08-19 | 2014-08-19 | A kind of buoyancy demonstrating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204143712U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107195233A (en) * | 2017-07-27 | 2017-09-22 | 衡阳师范学院 | The quick demonstrator of Archimedes' principle |
| CN107871426A (en) * | 2017-12-20 | 2018-04-03 | 黎桢宇 | A kind of senior middle school physics teaching experiment buoyancy demonstrating device |
| CN109166420A (en) * | 2016-08-17 | 2019-01-08 | 史玉成 | A kind of buoyancy demonstration teaching aid |
| CN109599014A (en) * | 2019-01-26 | 2019-04-09 | 信阳师范学院 | A kind of buoyancy experiment device of physics teaching |
-
2014
- 2014-08-19 CN CN201420466653.4U patent/CN204143712U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109166420A (en) * | 2016-08-17 | 2019-01-08 | 史玉成 | A kind of buoyancy demonstration teaching aid |
| CN107195233A (en) * | 2017-07-27 | 2017-09-22 | 衡阳师范学院 | The quick demonstrator of Archimedes' principle |
| CN107871426A (en) * | 2017-12-20 | 2018-04-03 | 黎桢宇 | A kind of senior middle school physics teaching experiment buoyancy demonstrating device |
| CN109599014A (en) * | 2019-01-26 | 2019-04-09 | 信阳师范学院 | A kind of buoyancy experiment device of 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: 20150204 Termination date: 20150819 |
|
| EXPY | Termination of patent right or utility model |