CN202332011U - Buoyancy force demonstrator - Google Patents
Buoyancy force demonstrator Download PDFInfo
- Publication number
- CN202332011U CN202332011U CN201120487556XU CN201120487556U CN202332011U CN 202332011 U CN202332011 U CN 202332011U CN 201120487556X U CN201120487556X U CN 201120487556XU CN 201120487556 U CN201120487556 U CN 201120487556U CN 202332011 U CN202332011 U CN 202332011U
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- China
- Prior art keywords
- container
- fixed pulley
- sink
- buoyancy
- float
- 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
The utility model discloses a buoyancy force demonstrator, comprising a transparent container (12), wherein water (2) is contained in the container (1) and the container (1) is internally provided with a vacuum buoy (3) and a counter weight device (8) is integrally arranged at the lower part of the vacuum buoy (3); a first fixed pulley (4) is mounted at the bottom part of the container (1) and a second fixed pulley (6) is mounted at the top part of a side wall at the left side of the container (1); and one end of a string (5) is connected with the counter weight device (8) of the vacuum buoy (3), and is respectively wound around the first fixed pulley (4) and the second fixed pulley (6) to be connected with a weight (7) which is arranged at the other end of the string. With the adoption of the structure disclosed by the utility model, the aims that students can study visually and have good receiving effects are achieved.
Description
Technical field
The utility model relates to a kind of instruments used for education, relates in particular to a kind of buoyancy demonstration appearance.
Background technology
The teacher is immersed in the object in the liquid when professor's buoyancy one joint, can receive gravity and buoyancy function, and when buoyancy during greater than gravity, object recovers on liquid side; When buoyancy equaled gravity, object floated on a liquid; When buoyancy during less than gravity, object sinks in liquid.Adopt this teaching methods more directly perceived, should not let the student accept, the effect that interferes with one's studies.
Summary of the invention
The purpose of the utility model provides a kind of simple in structure, and directly perceived, the student learns the good buoyancy demonstration appearance of reception.
The technical scheme of the utility model is a kind of buoyancy demonstration appearance; It comprises transparent container 1; Fill water 2 in the said container 1; It is characterized in that: be provided with the sink-float mark 3 of vacuum in the said container 1, the bottom one of said sink-float mark (3) be provided with weight device 8, the bottom of said container 1 is equipped with first fixed pulley 4; The end that top side wall is equipped with second fixed pulley, 6, one cords 5 in the left side of said container 1 is connected and walks around said first fixed pulley 4 respectively with the weight device 8 of said sink-float mark 3 and is connected with the weights that is arranged on the said cord other end 7 with second fixed pulley 6.
The technical scheme of the utility model can also be to be provided with rule 9 on the left side outer wall of said container 1 and with the corresponding section, position of said counterweight 7.
The beneficial effect of the utility model is through in said container 1, being provided with the sink-float mark 3 of vacuum; The bottom one of said sink-float mark (3) be provided with weight device 8; The bottom of said container 1 is equipped with first fixed pulley 4; Top side wall is equipped with second fixed pulley 6 in the left side of said container 1; One end of one cord 5 is connected and walks around said first fixed pulley 4 respectively with the weight device 8 of said sink-float mark 3 and is connected with the weights that is arranged on the said cord other end 7 with second fixed pulley 6, like this, through adding counterweight sink-float mark 3 is sunk; When the counterweight weight that adds reaches a certain amount of, when the buoyancy of sink-float mark 3 equates with gravity, the somewhere that sink-float mark 3 will rest in the water, when the counterweight weight that adds reduced, the buoyancy of sink-float mark 3 was during greater than gravity, and sink-float is marked 3 and will be floated; Having reached the student like this learns both directly perceived by the good purpose of reception.
Description of drawings
Fig. 1 is the structural representation of the utility model
Among Fig. 11, container, 2, water, 3, the sink-float mark, 4, first fixed pulley, 5, cord, 6, second fixed pulley, 7, counterweight, 8, weight device, 9, rule.
Embodiment
According to Fig. 1, shown in 2; The utility model relates to a kind of buoyancy demonstration appearance; It comprises transparent container 1, fills water 2 in the said container 1, is provided with the sink-float mark 3 of vacuum in the said container 1; The bottom one of said sink-float mark (3) be provided with weight device 8; The bottom of said container 1 is equipped with first fixed pulley 4, and the end that top side wall is equipped with second fixed pulley, 6, one cords 5 in the left side of said container 1 is connected and walks around said first fixed pulley 4 respectively with the weight device 8 of said sink-float mark 3 and is connected with the weights that is arranged on the said cord other end 7 with second fixed pulley 6; In addition, be provided with rule 9 on the left side outer wall of said container 1 and with the corresponding section, position of said counterweight 7; Like this, through adding counterweight sink-float mark 3 is sunk; When the counterweight weight that adds reaches a certain amount of, when the buoyancy of sink-float mark 3 equates with gravity, the somewhere that sink-float mark 3 will rest in the water 2, when counterweight 7 weight that add reduced, the buoyancy of sink-float mark 3 was during greater than gravity, and sink-float is marked 3 and will be floated; Having reached the student like this learns both directly perceived by the good purpose of reception.
Claims (2)
1. buoyancy demonstration appearance; It comprises transparent container (1); Fill water (2) in the said container (1); It is characterized in that: be provided with the sink-float mark (3) of vacuum in the said container (1), the bottom one of said sink-float mark (3) be provided with weight device (8), the bottom of said container (1) is equipped with first fixed pulley (4); Left side top side wall at said container (1) is equipped with second fixed pulley (6), and the weight device (8) that an end of a cord (5) and said sink-float are marked (3) is connected and walks around said first fixed pulley (4) respectively and is connected with the weights that is arranged on the said cord other end (7) with second fixed pulley (6).
2. buoyancy demonstration appearance according to claim 1 is characterized in that: be provided with rule (9) on the left side outer wall of said container (1) and with the corresponding section, position of said counterweight (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120487556XU CN202332011U (en) | 2011-11-21 | 2011-11-21 | Buoyancy force demonstrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120487556XU CN202332011U (en) | 2011-11-21 | 2011-11-21 | Buoyancy force demonstrator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202332011U true CN202332011U (en) | 2012-07-11 |
Family
ID=46443983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120487556XU Expired - Fee Related CN202332011U (en) | 2011-11-21 | 2011-11-21 | Buoyancy force demonstrator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202332011U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107688078A (en) * | 2017-08-28 | 2018-02-13 | 北方工业大学 | Large-fall water area water quality monitoring buoy |
-
2011
- 2011-11-21 CN CN201120487556XU patent/CN202332011U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107688078A (en) * | 2017-08-28 | 2018-02-13 | 北方工业大学 | Large-fall water area water quality monitoring buoy |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20121121 |