CN203799542U - Buoyancy demonstration device - Google Patents
Buoyancy demonstration device Download PDFInfo
- Publication number
- CN203799542U CN203799542U CN201420205091.8U CN201420205091U CN203799542U CN 203799542 U CN203799542 U CN 203799542U CN 201420205091 U CN201420205091 U CN 201420205091U CN 203799542 U CN203799542 U CN 203799542U
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- water
- cavity
- water tank
- buoyancy
- outlet pipe
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Abstract
The utility model discloses a buoyancy demonstration device, comprising a transparent water tank (1). The water tank (1) is filled with water (2); a vacuum buoy (3) is arranged within the water tank (1); the lower part of the vacuum buoy (3) is provided with a counter weight machine (4); the bottom of the counter weight machine (4) is provided with a string (5) the other end of which is provided with a weight machine (6); the weight machine (6) is internally provided with a cavity (10); an air inlet and outlet pipe (9) for communicating with the air is positioned on the cavity (10); an water inlet and outlet pipe is installed on the cavity (10) for communicating with the water; and a water pump (7) is installed on the water inlet and outlet pipe. Through the above arrangement, the goal that students can study directly and well can be achieved.
Description
Technical field
The utility model relates to a kind of teaching equipment, relates in particular to a kind of buoyancy demonstrator.
Background technology
Teacher, when professor's buoyancy one joint, is immersed in the object in liquid, can be subject to the effect of gravity and buoyancy, and when buoyancy is greater than gravity, object recovers in liquid side; When buoyancy equals gravity, object floats on a liquid; When buoyancy is less than gravity, object sinks in liquid.Adopt this teaching methods more directly perceived, should not allow student accept, the effect of impact study.
Summary of the invention
The purpose of this utility model is to provide a kind of simple in structure, directly perceived, the buoyancy demonstrator that Students ' Learning reception is good.
The technical solution of the utility model is a kind of buoyancy demonstrator, it comprises transparent water tank 1, in described water tank 1, fill water 2, it is characterized in that: in described water tank 1, be provided with vacuum sink-float mark 3, the bottom one of described vacuum sink-float mark 3 be provided with weight device 4, in the bottom of described weight device 4, be provided with cord 5, the other end of described cord 5 is provided with executes treasure 6, described treasure 6 inside of executing are provided with cavity 10, the turnover tracheae 9 being connected with air is installed on described cavity 10, the water inlet pipe and water outlet pipe 8 being communicated with water is also installed on described cavity 10, on described water inlet pipe and water outlet pipe 8, water pump 7 is installed.
The technical solution of the utility model can also be that described water pump 7 is controlled by telepilot.
The technical solution of the utility model can also be on the sidewall of described water tank 1, to be provided with depth displays 11.
The beneficial effects of the utility model are by be provided with vacuum sink-float mark 3 in described water tank 1, the bottom one of described vacuum sink-float mark 3 be provided with weight device 4, in the bottom of described weight device 4, be provided with cord 5, the other end of described cord 5 is provided with executes treasure 6, described treasure 6 inside of executing are provided with cavity 10, the turnover tracheae 9 being connected with air is installed on described cavity 10, the water inlet pipe and water outlet pipe 8 being communicated with water is also installed on described cavity 10, on described water inlet pipe and water outlet pipe 8, water pump 7 is installed, like this, can control the water pump 7 on water inlet pipe and water outlet pipe 8 by telepilot, make cavity 10 water inlet or drainings, and by turnover tracheae 9, the gas in cavity 10 is discharged or air inlet, when water inlet is to increasing to when a certain amount of, when the buoyancy of sink-float mark 3 is less than gravity and equates, sink-float mark 3 sinks, when inflow is when a certain amount of, when the buoyancy of sink-float mark 3 equates with gravity, whose somewhere sink-float mark 3 will rest on, and when water discharge is to increasing to when a certain amount of, when the buoyancy of sink-float mark 3 is greater than gravity and equates, sink-float is marked 3 and will be floated, reached like this Students ' Learning not only directly perceived but also good object of reception of getting up.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model
In Fig. 11, container, 2, water, 3, sink-float mark, 4, weight device, 5, cord, 6, execute treasure, 7, water pump, 8, water inlet pipe and water outlet pipe, 9, turnover tracheae, 10, cavity, 11, depth displays.
Embodiment
Shown in Fig. 1, the utility model relates to a kind of buoyancy demonstrator, it comprises transparent water tank 1, in described water tank 1, fill water 2, in described water tank 1, be provided with vacuum sink-float mark 3, the bottom one of described vacuum sink-float mark 3 be provided with weight device 4, in the bottom of described weight device 4, be provided with cord 5, the other end of described cord 5 is provided with executes treasure 6, described treasure 6 inside of executing are provided with cavity 10, the turnover tracheae 9 being connected with air is installed on described cavity 10, the water inlet pipe and water outlet pipe 8 being communicated with water is also installed on described cavity 10, on described water inlet pipe and water outlet pipe 8, water pump 7 is installed, described water pump 7 is controlled by telepilot, in addition, on the sidewall of described water tank 1, be provided with depth displays 11, like this, during demonstration, by telepilot, control the water pump 7 on water inlet pipe and water outlet pipe 8, make cavity 10 water inlet or drainings, and by turnover tracheae 9, the gas in cavity 10 is discharged or air inlet, when inflow increases to when a certain amount of, when the buoyancy of sink-float mark 3 is less than gravity and equates, sink-float mark 3 sinks, when inflow is when a certain amount of, when the buoyancy of sink-float mark 3 equates with gravity, whose somewhere sink-float mark 3 will rest on, and when water discharge is to increasing to when a certain amount of, when the buoyancy of sink-float mark 3 is greater than gravity and equates, sink-float is marked 3 and will be floated, reached like this Students ' Learning not only directly perceived but also good object of reception of getting up.
Claims (3)
1. a buoyancy demonstrator, it comprises transparent water tank (1), in described water tank (1), fill water (2), it is characterized in that: in described water tank (1), be provided with vacuum sink-float mark (3), the bottom one of described vacuum sink-float mark (3) be provided with weight device (4), in the bottom of described weight device (4), be provided with cord (5), the other end of described cord (5) is provided with executes treasure (6), described treasure (6) inside of executing is provided with cavity (10), the turnover tracheae (9) being connected with air is installed on described cavity (10), the water inlet pipe and water outlet pipe (8) being communicated with water is also installed on described cavity (10), water pump (7) is installed on described water inlet pipe and water outlet pipe (8).
2. buoyancy demonstrator according to claim 1, is characterized in that: described water pump (7) is controlled by telepilot.
3. buoyancy demonstrator according to claim 1 and 2, is characterized in that: on the sidewall of described water tank (1), be provided with depth displays (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420205091.8U CN203799542U (en) | 2014-04-16 | 2014-04-16 | Buoyancy demonstration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420205091.8U CN203799542U (en) | 2014-04-16 | 2014-04-16 | Buoyancy demonstration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203799542U true CN203799542U (en) | 2014-08-27 |
Family
ID=51381739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420205091.8U Expired - Fee Related CN203799542U (en) | 2014-04-16 | 2014-04-16 | Buoyancy demonstration device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203799542U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104504971A (en) * | 2014-10-15 | 2015-04-08 | 徐昕 | Sound transmission demonstration instrument |
-
2014
- 2014-04-16 CN CN201420205091.8U patent/CN203799542U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104504971A (en) * | 2014-10-15 | 2015-04-08 | 徐昕 | Sound transmission demonstration instrument |
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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: 20140827 Termination date: 20160416 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |